Perhaps you should try some spelling variations:
chat xuc » cam xuc, chao xu, chat cua
chat huu » pham huu
su sach » so sach, vu sach
va hanh » van hanh, va thanh, va danh
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
lam va » nam va, lam ha, am va
dam va » dam van, nam va, dam ha
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: su sach ty nang xa hoi. hieu ve ((chat xuc) OR (chat huu)) va hanh ((lam va) or (dam va)) thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu ve ((chat xuc) OR (chat huu)) va hanh ((lam va) OR (dam va)) thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang xa hoi. hieu ve ((chat xuc) OR (chat huu)) va hanh ((lam va) or (dam va)) thiet".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. hieu ve ((chat xuc) OR (chat huu)) va hanh ((lam va) or (dam va)) thiet*.