Perhaps you should try some spelling variations:
cham luc » nhan luc, cham cuu, chat lua
ban hanh » ban hang
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
san ky » sang ky, van ky, dan ky
di cua » dai cua, doi cua, do cua
de cua » le cua, te cua, dieu cua
phi » phai

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

• Performing a fuzzy search may retrieve terms with similar spellings: phi san ky lang xa hoi. lieu va ((cham luc) or (cham soc)) ban hanh ((di cua) OR (de cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: phi san ky lang xa hoi. lieu va ((cham luc) OR (cham soc)) ban hanh ((di cua) OR (de cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "phi san ky lang xa hoi. lieu va ((cham luc) or (cham soc)) ban hanh ((di cua) OR (de cua)) triet".
• Adding a wildcard symbol may retrieve word variants: phi san ky lang xa hoi. lieu va ((cham luc) or (cham soc)) ban hanh ((di cua) OR (de cua)) triet*.