Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
qua sinh » qua kinh, cua sinh, qua ninh
sinh dai » sinh thai, si dai, sinh vat
vu sach » vu bach, su sach, vu khach
te sach » toc sach
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
cau luc » cau truc, cau phuc
luc qua » luc quan, luc cua, luc nua
cua tre » cuu tre, cua triet, dua tren
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: ((vu sach) or (te sach)) ky nang xa hoi. hieu van cau luc qua sinh dai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (te sach)) ky nang xa hoi. hieu van cau luc qua sinh dai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (te sach)) ky nang xa hoi. hieu van cau luc qua sinh dai ((cua tre) or (cua te))*.