Perhaps you should try some spelling variations:
dung than » dung thang, dung thanh, dung nhan
hieu van » hieu va, thien van, lieu va
than cua » nhan cua, thai cua, ban cua
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
xa dung » xay dung, xa dong, va dung
cua tre » cua te, cuu tre, cua triet
su cac » su cao, su can, eu cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su cac) OR (tu cac)) ky nang xa hoi. hieu van cam tuc xa dung than cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su cac) OR (tu cac)) ky nang xa hoi. hieu van cam tuc xa dung than cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su cac) OR (tu cac)) ky nang xa hoi. hieu van cam tuc xa dung than cua tre*.