Perhaps you should try some spelling variations:
dong thai » duong thai, dong tai, cong thai
hieu van » hieu va, thien van, lieu va
cau treo » cau theo, cau tren, cau triet
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 dong » ha dong, van dong, lao dong
cua tre » cua te, cuu tre, cua triet
su cao » cu cao, vu cao, su co

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cao ky nang xa hoi. hieu van cam tuc xa dong thai ((cua tre) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cao ky nang xa hoi. hieu van cam tuc xa dong thai ((cua tre) OR (cau treo)).
• Adding a wildcard symbol may retrieve word variants: su cao ky nang xa hoi. hieu van cam tuc xa dong thai ((cua tre) or (cau treo))*.