Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
pham chuc » pham duc, pham huu, kham chua
sanh thu » sach thu, san thu, doanh thu
thu nang » thi nang, thu hang, thu bang
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, va tinh, le thanh
so sanh » do sanh
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh thu nang xa hoi. hieu van ((pham chuc) or (van xay)) ((va thanh) OR (ban thanh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh thu nang xa hoi. hieu van ((pham chuc) OR (van xay)) ((va thanh) OR (ban thanh)) vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh thu nang xa hoi. hieu van ((pham chuc) or (van xay)) ((va thanh) OR (ban thanh)) vi cua te".
• Adding a wildcard symbol may retrieve word variants: so sanh thu nang xa hoi. hieu van ((pham chuc) or (van xay)) ((va thanh) OR (ban thanh)) vi cua te*.