Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
pham thuc » phap thuc, pham chuc, nham thuc
hang loi » thang loi, hang doi, tang loi
ban hang » ngan hang
thuc ban » thuoc ban, thuc dan, thu ban
vu khach » vu khanh, vu khac, vay khach
thu sach » tu sach, thuat sach, thuoc sach
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
nang xa » lang xa, nang ma, mang xa
loi cua » loai cua, hoi cua, doi cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu khach) or (thu sach)) ky ((nang xa) OR (nang x)) hoi. hieu va pham thuc ban hang loi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu khach) OR (thu sach)) ky ((nang xa) OR (nang x)) hoi. hieu va pham thuc ban hang loi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu khach) or (thu sach)) ky ((nang xa) OR (nang x)) hoi. hieu va pham thuc ban hang loi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((vu khach) or (thu sach)) ky ((nang xa) OR (nang x)) hoi. hieu va pham thuc ban hang loi cua triet*.