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