Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
va triet » va thiet, va trien, ve triet
chat xuc » chat huu, cam xuc, chao xu
hieu va » lieu va, hieu qua
hanh vu » hanh vi, hanh va, hanh tu
va hanh » van hanh, va thanh, va danh
te sach » toc sach
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
xuc va » duc va, tuc va, luc va
vu va » vu van, tu va, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (thuat sach)) ky nang xa hoi. ((hieu ve) OR (hieu va)) chat xuc va hanh vu va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuat sach)) ky nang xa hoi. ((hieu ve) OR (hieu va)) chat xuc va hanh vu va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thuat sach)) ky nang xa hoi. ((hieu ve) OR (hieu va)) chat xuc va hanh vu va triet".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuat sach)) ky nang xa hoi. ((hieu ve) OR (hieu va)) chat xuc va hanh vu va triet*.