Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hanh cua » manh cua, hang cua, hanh sua
sach ky » sac ky, sach y, sach ty
hanh ca » hanh cac, hanh cat, hanh cad
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
hieu ve » hieu van
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ky nang x hoi. ((hieu ve) or (hieu va)) cam luc va ((hanh ca) OR (hanh cua)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang x hoi. ((hieu ve) OR (hieu va)) cam luc va ((hanh ca) OR (hanh cua)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang x hoi. ((hieu ve) or (hieu va)) cam luc va ((hanh ca) OR (hanh cua)) cua tre*".