Perhaps you should try some spelling variations:
thanh ve » hanh ve, thanh va, thanh vien
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam luc » cam xuc
cau luc » cau truc, cau phuc
cuu tre » cua tre, cau tren, cau treo
ve cuu » ve cau, ve chu, ve cua

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 (cuoc cach)) ky nang xa hoi. hieu va ((cam luc) OR (cau luc)) gia thanh ve cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (cuoc cach)) ky nang xa hoi. hieu va ((cam luc) OR (cau luc)) gia thanh ve cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (cuoc cach)) ky nang xa hoi. hieu va ((cam luc) OR (cau luc)) gia thanh ve cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (cuoc cach)) ky nang xa hoi. hieu va ((cam luc) OR (cau luc)) gia thanh ve cuu tre*.