Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, hieu ve
cau treo » cau theo, cau tren, cau triet
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
cac xuc » cam xuc, cac nuoc, chat xuc
xuc nam » duc nam, xuc cam, cuc nam
nam dan » nam dinh
dan vai » dan va, dan tai, dan vat
y nang » ky nang, ly nang, v nang
cua te » cua tu

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 y nang xa hoi. ((hieu van) OR (lieu va)) cac xuc nam dan vai ((cau treo) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. ((hieu van) OR (lieu va)) cac xuc nam dan vai ((cau treo) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang xa hoi. ((hieu van) OR (lieu va)) cac xuc nam dan vai ((cau treo) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. ((hieu van) OR (lieu va)) cac xuc nam dan vai ((cau treo) or (cua te))*.