Perhaps you should try some spelling variations:
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va, hieu qua
cam luc » cam xuc, cau luc
te sai » te tai, te bai, te lai
de cua » le cua, te cua, dieu cua
sai ky » sac ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ky nang xa hoi. ((hieu ve) or (hieu va)) cam luc ((van hanh) OR (ban hanh)) de cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky nang xa hoi. ((hieu ve) OR (hieu va)) cam luc ((van hanh) OR (ban hanh)) de cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sai ky nang xa hoi. ((hieu ve) or (hieu va)) cam luc ((van hanh) OR (ban hanh)) de cua te".
• Adding a wildcard symbol may retrieve word variants: te sai ky nang xa hoi. ((hieu ve) or (hieu va)) cam luc ((van hanh) OR (ban hanh)) de cua te*.