Perhaps you should try some spelling variations:
cam thuc » am thuc, nam thuc, cam thu
hang doi » hang di, hang loi, huong doi
te sach » toc sach
so sanh » do sanh
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
va hang » van hang, va nang, va lang
doi cuu » doi cua, doi cuoc
cuu tre » cua tre, cau tren, cau treo
ve cam » ve cham, ve cac, va cam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (so sanh)) ky nang xa hoi. hieu ve cam thuc va hang doi cuu tre~.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (so sanh)) ky nang xa hoi. hieu ve cam thuc va hang doi cuu tre*.