Perhaps you should try some spelling variations:
lam duoc » nam duoc, luat duoc, lam thuoc
lang va » lang van, hang va, lang ha
va lang » va nang, hoa lang
duoc va » nuoc va, duc va, duoc ma
hieu va » lieu va, hieu qua
te sach » toc sach
ty hang » ly hang, thi hang, thu hang
ty lang » tay lang, tu lang, tai lang
cua tre » cua te, cuu tre, cua triet
va lam » van lam, va lap
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 ((ty lang) or (((ty hang) or (ty xang)))) xa hoi. hieu va lam duoc va lang va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty lang) OR (((ty hang) OR (ty xang)))) xa hoi. hieu va lam duoc va lang va cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((ty lang) or (((ty hang) or (ty xang)))) xa hoi. hieu va lam duoc va lang va cua tre*.