Perhaps you should try some spelling variations:
thien van » thi van
su sach » so sach, vu sach
cua tre » cuu tre, cua triet, dua tren
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cac tuc » cac toc, cac tu, cac tac
van cac » van hac, van cau, van bac
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y ((nang xa) or (lang xa)) hoi. thien van cac tuc va danh vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((nang xa) OR (lang xa)) hoi. thien van cac tuc va danh vi ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su sach y ((nang xa) or (lang xa)) hoi. thien van cac tuc va danh vi ((cua tre) or (cua te))*.