Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cham xuc » cam xuc, chat xuc, cham soc
hanh dai » hanh tai, hanh dao, vanh dai
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
va hanh » van hanh, va thanh, va danh
cua tre » cuu tre, cua triet, dua tren
sach o » sach lo, sac o, sach y
o lang » hoa lang, hoi lang
xuc va » duc va, tuc va, luc va
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach o lang xa hoi. ((hieu van) OR (hieu qua)) cham xuc va hanh dai ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach o lang xa hoi. ((hieu van) or (hieu qua)) cham xuc va hanh dai ((cua tre) OR (cua te))~".
• Adding a wildcard symbol may retrieve word variants: su sach o lang xa hoi. ((hieu van) or (hieu qua)) cham xuc va hanh dai ((cua tre) OR (cua te))*.