Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thu sach » tu sach, thuoc sach, thu hoach
nang co » nang cao, nang doc, nang noi
hieu va » lieu va, hieu qua
lam xuc » cam xuc, lam duoc
va danh » va dinh, va dan, va hanh
vai cua » hai cua, lai cua, bai cua
va lam » van lam, va lap
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (thuat sach)) ky nang co hoc. hieu va lam xuc va danh ((vai cua) OR (dai cua)) thuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuat sach)) ky nang co hoc. hieu va lam xuc va danh ((vai cua) OR (dai cua)) thuoc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (thuat sach)) ky nang co hoc. hieu va lam xuc va danh ((vai cua) OR (dai cua)) thuoc".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (thuat sach)) ky nang co hoc. hieu va lam xuc va danh ((vai cua) OR (dai cua)) thuoc*.