Perhaps you should try some spelling variations:
ve triet » va trien, su triet
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
nang ma » tang ma, nang cao, mang may
hieu va » lieu va, hieu qua
toc cac » hoc cac, tuc cac, ton cac
cam luc » cam xuc, cau luc
sang ma » tang ma, sang tao, mang may
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
cua tu » cua tuc, cua su, cua cu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc cac ky ((nang ma) OR (sang ma)) hoi. hieu va cam luc va danh vi ((cua tu) OR (ve triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc cac ky ((nang ma) OR (sang ma)) hoi. hieu va cam luc va danh vi ((cua tu) or (ve triet))~".
• Adding a wildcard symbol may retrieve word variants: toc cac ky ((nang ma) OR (sang ma)) hoi. hieu va cam luc va danh vi ((cua tu) or (ve triet))*.