Perhaps you should try some spelling variations:
su triet » su viet, ve triet
hanh cao » hanh cac, hanh cat, hanh cad
su tien » su kien, su hien, tu tieng
cam luc » cam xuc, cau luc
nang ma » tang ma, sang ma, nang cao
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
luc va » duc va, tuc va, loc va
so sac » so sach
ma hoi » mai hoi, xa hoi, ma hoa
so dac » so dan
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sac) OR (so dac)) ky nang ma hoi. hieu va cam luc va hanh cao ((su triet) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sac) OR (so dac)) ky nang ma hoi. hieu va cam luc va hanh cao ((su triet) OR (su tien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sac) OR (so dac)) ky nang ma hoi. hieu va cam luc va hanh cao ((su triet) or (su tien))".
• Adding a wildcard symbol may retrieve word variants: ((so sac) OR (so dac)) ky nang ma hoi. hieu va cam luc va hanh cao ((su triet) or (su tien))*.