Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
phat xuc » chat xuc, phat xuat, phap xu
tu cach » tu cac
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
xuc va » duc va, tuc va, luc va
vi cua » di cua
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: ((tu cach) or (thuat sach)) ky nang x hoi. hieu va phat xuc va hanh ((vi cua) OR (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thuat sach)) ky nang x hoi. hieu va phat xuc va hanh ((vi cua) OR (vai cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (thuat sach)) ky nang x hoi. hieu va phat xuc va hanh ((vi cua) OR (vai cua)) tre*".