Perhaps you should try some spelling variations:
nang doi » nang doc, nang noi, hang doi
cau theo » cau thi, cau tao
te sach » toc sach
hiem he » hiem xe, hieu he, thien he
va nang » van nang, da nang, cam nang
doi cau » doi dau, di cau, doi ca
he nam » ha nam, nghe nam
thu va » thuc va, thue va, tu va
x hoi » xa hoi, o hoi, x ho

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 x hoi. hiem he nam thu va nang doi cau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (do sanh)) ky nang x hoi. hiem he nam thu va nang doi cau theo.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (do sanh)) ky nang x hoi. hiem he nam thu va nang doi cau theo*.