Perhaps you should try some spelling variations:
xa phuong » va phuong, da phuong, ha phuong
hieu van » hieu va, thien van, lieu va
xa huong » va huong, xa muong, ga huong
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
cam tuc » cam xuc, cam tu, nam thuc
cua tre » cua te, cuu tre, cua triet

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

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