Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham xuc » cam xuc, chat xuc, cham soc
hieu van » thien van, lieu va, hieu ve
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, de cua

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) or (thu sach)) ly nang xa hoi. ((hieu van) OR (hieu va)) cham xuc va hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thu sach)) ly nang xa hoi. ((hieu van) OR (hieu va)) cham xuc va hanh di cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (thu sach)) ly nang xa hoi. ((hieu van) OR (hieu va)) cham xuc va hanh di cua tre*".