Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
cuu tre » cua tre, cau treo
danh vi » hanh vi, dinh vi, danh di
te sach » toc sach
sang ma » tang ma, nang ma, sang tao
va tham » van tham, va cham, va thanh
soc va » hoc va, loc va, goc va
doc va » duoc va, hoc va, duc va
ma hoi » mai hoi, xa hoi, ma hoa

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 _ sang ma hoi. lieu va tham ((soc va) or (doc va)) danh vi ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach _ sang ma hoi. lieu va tham ((soc va) OR (doc va)) danh vi ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach _ sang ma hoi. lieu va tham ((soc va) or (doc va)) danh vi ((cuu tre) OR (cau tren))".
• Adding a wildcard symbol may retrieve word variants: te sach _ sang ma hoi. lieu va tham ((soc va) or (doc va)) danh vi ((cuu tre) OR (cau tren))*.