Perhaps you should try some spelling variations:
cong thai » cong hai, hong thai, cong thanh
hieu van » hieu va, thien van, lieu va
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 cong » va cong, xa dong, xa nong
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
su cac » tu cac, su cao, su can

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 ky nang xa hoi. hieu van cam tuc xa cong thai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang xa hoi. hieu van cam tuc xa cong thai ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: su cac ky nang xa hoi. hieu van cam tuc xa cong thai ((cua tre) or (cuu tre))*.