Perhaps you should try some spelling variations:
dan thanh » dang thanh, danh thanh, ban thanh
ban hang » ngan hang
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam hoc » cao hoc, am hoc, cam hoa
hoi cua » hoi chuc
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
cua tu » cua tuc, cua su, cua cu

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 y nang xa hoi. hieu va cam hoc ((dan thanh) or (ban hang)) hoi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y nang xa hoi. hieu va cam hoc ((dan thanh) OR (ban hang)) hoi cua tu.
• Adding a wildcard symbol may retrieve word variants: so sach y nang xa hoi. hieu va cam hoc ((dan thanh) or (ban hang)) hoi cua tu*.