Perhaps you should try some spelling variations:
vu khanh » vu thanh, van khanh, duy khanh
hanh dai » hanh tai, hanh dao, vanh dai
nang ma » tang ma, sang ma, nang cao
tuc va » thuc va, truc va, tuc xa
xuc va » duc va, luc va, xac va
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
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 sac ky nang ma hoi. hieu ((vu kham) or (vu khanh)) ((xuc va) OR (tuc va)) hanh dai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ma hoi. hieu ((vu kham) OR (vu khanh)) ((xuc va) OR (tuc va)) hanh dai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ma hoi. hieu ((vu kham) or (vu khanh)) ((xuc va) OR (tuc va)) hanh dai cua tu".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ma hoi. hieu ((vu kham) or (vu khanh)) ((xuc va) OR (tuc va)) hanh dai cua tu*.