Perhaps you should try some spelling variations:
chua tre » chua tri, cua tre, chua trieu
lam duoc » nam duoc, luat duoc, lam thuoc
thu lang » thu bang, phu lang, tho lang
thu hang » thuc hanh, thu huong, thu trang
thi hang » thi hanh, thi nang, thi hong
hieu van » hieu va, thien van, lieu va
va chua » vua chua, ca chua, va chu
nang va » nang van, hang va, nang ma
va nang » van nang, da nang, cam nang
duoc va » nuoc va, duc va, duoc ma
te sach » toc sach
van lam » van nam

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