Perhaps you should try some spelling variations:
thu lang » thu bang, phu lang, tho lang
thu hang » thi hang, thuc hanh, thu huong
lam duoc » nam duoc, luat duoc, lam thuoc
va hang » van hang, va nang, va lang
duoc va » nuoc va, duc va, duoc ma
te sach » toc sach
thi van » thi lan, thi hanh, thi nang
cua tre » cua te, cuu tre, cua triet
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((thu lang) or (thu hang)) xa hoi. ((thien van) OR (thi van)) lam duoc va hang va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thu lang) OR (thu hang)) xa hoi. ((thien van) OR (thi van)) lam duoc va hang va cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((thu lang) or (thu hang)) xa hoi. ((thien van) OR (thi van)) lam duoc va hang va cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((thu lang) or (thu hang)) xa hoi. ((thien van) OR (thi van)) lam duoc va hang va cua tre*.