Perhaps you should try some spelling variations:
hanh trinh » canh tranh
chua nang » chuc nang, chua xang, kha nang
nang cong » nang song, dang cong, bang cong
theo chu » theo chieu, cho chu, chao chu
chu manh » ho manh, chu han, chu van
van tuan » van quan, van ban, anh tuan
van tan » van ban, van tai, van thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu manh - ((hanh trinh) or (hanh chinh)) chua nang cong ((van tan) OR (van tuan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu manh - ((hanh trinh) OR (hanh chinh)) chua nang cong ((van tan) OR (van tuan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu manh - ((hanh trinh) or (hanh chinh)) chua nang cong ((van tan) OR (van tuan)) tap".
• Adding a wildcard symbol may retrieve word variants: theo chu manh - ((hanh trinh) or (hanh chinh)) chua nang cong ((van tan) OR (van tuan)) tap*.