Perhaps you should try some spelling variations:
"phan trien du lich" » "phan tien du lich", "phan truyen du lich", "phan kien du lich", "phan trien cua lich", "phan trien quy lich"
"phap thai cua kich" » "phap tai cua kich", "phap thi cua kich", "phap tham cua kich", "phap than cua kich", "phap tai cuc kich", "phap tri cua kich", "phap thai cua kinh", "phap thai cua khach", "phap thai qua kinh"
"phat trien du lich" » "phat trien cua lich", "phat trien quy lich", "phat truyen du lich", "pham trien du lich", "nhat trien du lich"
"phap toi cua lich" » "phap tai cua lich", "phap thi cua lich", "phap boi cua lich", "phap toi cuu lich", "phap toi luat lich", "phap toi cua sinh", "phap troi cua lich", "phap tri cua lich", "phap hoi cua lich"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("phat trien du lich") OR ("phan trien du lich"))) or ((("phap toi cua lich") or ("phap thai cua kich"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phat trien du lich") OR ("phan trien du lich"))) OR ((("phap toi cua lich") OR ("phap thai cua kich")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"phat trien du lich\") OR (\"phan trien du lich\"))) or (((\"phap toi cua lich\") or (\"phap thai cua kich\"))))".
• Removing quotes may allow a broader search: (((( phat trien du lich ) OR ( phan trien du lich ))) or ((( phap toi cua lich ) or ( phap thai cua kich )))).
• Adding a wildcard symbol may retrieve word variants: (((("phat trien du lich") OR ("phan trien du lich"))) or ((("phap toi cua lich") or ("phap thai cua kich"))))*.