Perhaps you should try some spelling variations:
sach thue » sach thu, sach thieu, sach tham
su triet » su viet, su tien, ve triet
trong xa » trong xay, trong xu, trong ba
thanh vi » hanh vi, thanh va, thanh ve
trong ca » trong cac, trong nha
va thanh » gia thanh, ban thanh, va tinh
cua tre » cua te, cuu tre, cua triet
cam tuc » cam xuc, cam tu, nam thuc
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
tuc va » thuc va, truc va, tuc xa
va cam » va cham, va cac, va cao

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 thue ((trong xa) or (trong ca)) hoi. hieu va cam tuc va thanh vi ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thue ((trong xa) OR (trong ca)) hoi. hieu va cam tuc va thanh vi ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: su sach thue ((trong xa) or (trong ca)) hoi. hieu va cam tuc va thanh vi ((cua tre) or (su triet))*.