Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
vien cac » vien bach, vien dai, vien da
hanh lai » hanh lam, hanh tai, thanh lap
cua tre » cuu tre, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
cac xuc » cam xuc, cac nuoc, chat xuc
tu sach » thu sach, su sach, te sach
sach tu » sach thu, cach tu, sach ty
tu sang » thu sang, tu san, tu lang
xuc va » duc va, tuc va, luc va
ma hoi » mai hoi, ma hoa, me hoi
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: tu sach tu sang ((ma hoi) or (xa hoi)). hieu vien cac xuc va hanh lai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tu sang ((ma hoi) OR (xa hoi)). hieu vien cac xuc va hanh lai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach tu sang ((ma hoi) or (xa hoi)). hieu vien cac xuc va hanh lai ((cua tre) or (cua te))*.