Perhaps you should try some spelling variations:
van hanh » van thanh, van anh, van ban
vinh cua » sinh cua, tinh cua, dinh cua
ban hanh » ban hang
hieu van » thien van, lieu va, hieu ve
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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 x hoi. ((hieu va) or (hieu van)) cac xuc ((van hanh) OR (ban hanh)) vinh cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang x hoi. ((hieu va) OR (hieu van)) cac xuc ((van hanh) OR (ban hanh)) vinh cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang x hoi. ((hieu va) or (hieu van)) cac xuc ((van hanh) OR (ban hanh)) vinh cua te".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang x hoi. ((hieu va) or (hieu van)) cac xuc ((van hanh) OR (ban hanh)) vinh cua te*.