Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
cau tre » cau tren, cau treo, cuu tre
cau tra » ca tra, cau ra, cau truc
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
va anh » van anh, va danh, va hanh
anh va » hanh va
x hoi » xa hoi, o hoi, 5 hoi

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) or (x ho)). hieu ve cam tuc va anh va ((cau tre) OR (cau tra))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang ((x hoi) OR (x ho)). hieu ve cam tuc va anh va ((cau tre) OR (cau tra))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang ((x hoi) or (x ho)). hieu ve cam tuc va anh va ((cau tre) OR (cau tra))*".