Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
cua tre » cua te, cuu tre, cua triet
hang di » hang doi, hang vi, hang dien
va hang » van hang, va nang, va lang
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
so sanh » do sanh
qua ca » qua cac, qua cua, qua cai
tuc va » thuc va, truc va, tuc xa
ca tuc » cua tuc, va tuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (so sanh)) ky nang xa hoi. hieu qua ca tuc va hang di ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) ky nang xa hoi. hieu qua ca tuc va hang di ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) ky nang xa hoi. hieu qua ca tuc va hang di ((cua tre) or (su triet))*.