Perhaps you should try some spelling variations:
va doanh » van doanh, vay doanh, va danh
doanh va » doan va, doanh tai, doanh cua
ve triet » va trien, su triet
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va, hieu qua
su viet » so viet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
cam tu » cam thu, nam tu, dam tu

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 xa hoi. ((hieu ve) or (hieu va)) cam tu va doanh va ((su viet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. ((hieu ve) OR (hieu va)) cam tu va doanh va ((su viet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. ((hieu ve) or (hieu va)) cam tu va doanh va ((su viet) or (ve triet))*.