Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hanh vai » hanh vi, hanh va, hanh tai
cau phuc » cau truc, chau phu, huu phuc
cau tren » cu tren, dau tren, ca tren
hieu ve » hieu van
sach ly » sach y, sach lo, sach ty
hieu va » lieu va, hieu qua
cao hoi » cau hoi, cao hoc, tao hoi
phuc va » phuc vu, thuc va, chuc va
va hanh » van hanh, va thanh, va danh
ly nang » ky nang, ly hang, ly vang
vai cau » va cau, van cau, vai cac
co hoi » co hoc, co loi

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 ly nang ((cao hoi) OR (co hoi)). ((hieu ve) or (hieu va)) cau phuc va hanh vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ly nang ((cao hoi) OR (co hoi)). ((hieu ve) OR (hieu va)) cau phuc va hanh vai cau tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ly nang ((cao hoi) OR (co hoi)). ((hieu ve) or (hieu va)) cau phuc va hanh vai cau tren*".