Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
chat xuc » chat huu, chao xu, chat cua
te sach » toc sach
danh vu » danh tu, anh vu, danh du
va danh » va dinh, va dan, va hanh
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
vu va » vu van, tu va, su va
thiet » thieu

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