Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach kem
hac tuc » thac toc, thai tuc
danh vi » hanh vi, dinh vi, danh va
danh di » danh du, xanh di, danh dien
tuc va » thuc va, truc va, tuc xa
va hac » van hac, va khac, va cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach ky) or (sach ty)) nang xa hoi. hieu va hac tuc va ((danh vi) or (danh di)) cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ky) OR (sach ty)) nang xa hoi. hieu va hac tuc va ((danh vi) OR (danh di)) cau tren.
• Adding a wildcard symbol may retrieve word variants: thu ((sach ky) or (sach ty)) nang xa hoi. hieu va hac tuc va ((danh vi) or (danh di)) cau tren*.