Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
thu sach » tu sach, thuat sach, thuoc sach
van chia » van chi, ban chia, van chien
va thanh » gia thanh, ban thanh, va tinh
chia te » chia se
cu lang » cua lang, xu lang, chi lang
tu lang » tu lanh, xu lang, tu quang
ve bao » te bao, va bao
ve cao » va cao, ve cac, ve co

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((tu lang) or (cu lang)) xa hoi. hieu ((ve cao) OR (ve bao)) duc va thanh van chia te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((tu lang) OR (cu lang)) xa hoi. hieu ((ve cao) OR (ve bao)) duc va thanh van chia te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((tu lang) or (cu lang)) xa hoi. hieu ((ve cao) OR (ve bao)) duc va thanh van chia te".
• Adding a wildcard symbol may retrieve word variants: thu sach ((tu lang) or (cu lang)) xa hoi. hieu ((ve cao) OR (ve bao)) duc va thanh van chia te*.