Perhaps you should try some spelling variations:
chat xuc » cam xuc, chao xu, chat cua
chat huu » pham huu
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va danh, ban hanh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
vai va » mai va, dai va, hai 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: tu sach ky nang xa hoi. hieu va ((chat xuc) OR (chat huu)) ((va hanh) or (va thanh)) vai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu va ((chat xuc) OR (chat huu)) ((va hanh) OR (va thanh)) vai va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu va ((chat xuc) OR (chat huu)) ((va hanh) or (va thanh)) vai va thiet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu va ((chat xuc) OR (chat huu)) ((va hanh) or (va thanh)) vai va thiet*.