Perhaps you should try some spelling variations:
dan thanh » dang thanh, danh thanh, ban thanh
hieu nghe » hiem ngheo, nhiem nghe, hieu he
lieu nghe » lieu nhe, lieu nghien, lieu nha
nam thuc » nam thuoc, am thuc, nam thu
thanh vi » hanh vi, thanh va, thanh ve
thuc dan » thuc hanh, hoc dan, thuc vat
nang xa » nang x, lang xa, nang ma
vu sac » vu sach, vu san, vu cac
vi cua » vai cua, di cua
va sac » va cac, va suc, va san
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: ((vu sac) OR (va sac)) ky nang xa hoi. ((hieu nghe) or (lieu nghe)) nam thuc dan thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sac) OR (va sac)) ky nang xa hoi. ((hieu nghe) OR (lieu nghe)) nam thuc dan thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sac) OR (va sac)) ky nang xa hoi. ((hieu nghe) or (lieu nghe)) nam thuc dan thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((vu sac) OR (va sac)) ky nang xa hoi. ((hieu nghe) or (lieu nghe)) nam thuc dan thanh vi cua te*.