Perhaps you should try some spelling variations:
hang doi » hang di, hang loi, huong doi
cau treo » cau tren, cau triet, cau trieu
cau theo » cau thi, cau tao
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu he » hieu ve, hiem he, hieu le
va hang » van hang, va nang, va lang
he nam » ha nam, nghe nam
thu va » thuc va, thue va, tu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (do sanh)) ky nang xa hoi. hieu he nam thu va hang doi ((cau treo) OR (cau theo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (do sanh)) ky nang xa hoi. hieu he nam thu va hang doi ((cau treo) OR (cau theo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (do sanh)) ky nang xa hoi. hieu he nam thu va hang doi ((cau treo) OR (cau theo))".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (do sanh)) ky nang xa hoi. hieu he nam thu va hang doi ((cau treo) OR (cau theo))*.