Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cuu tre » cau tren, cau treo
hanh va » hang va
cua tre » cua te, cua triet, dua tren
cam tuc » cam xuc, cam tu, nam thuc
van cam » van nam, van lam, van cau
nang xa » nang x, lang xa, nang ma
tuc va » thuc va, truc va, tuc xa
sac ky » cac ky, sai ky
su sac » su sach, su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang xa hoi. hieu van cam tuc va ((hanh vi) or (hanh va)) ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu van cam tuc va ((hanh vi) OR (hanh va)) ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. hieu van cam tuc va ((hanh vi) or (hanh va)) ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. hieu van cam tuc va ((hanh vi) or (hanh va)) ((cua tre) OR (cuu tre))*.