Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cac tuc » cac toc, cac tu, cac tac
va dinh » van dinh, va kinh, va tinh
dinh ca » dinh cac, dinh cua, dinh cao
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, tuc xa
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky nang ma hoi. hieu va cac tuc va dinh ca ((cua tu) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky nang ma hoi. hieu va cac tuc va dinh ca ((cua tu) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: tu san ky nang ma hoi. hieu va cac tuc va dinh ca ((cua tu) or (va triet))*.