Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
ban hanh » ban hang
nhan luc » nang luc
cham luc » cham soc, cham cuu, chat lua
sang ma » tang ma, nang ma, sang tao
sach vu » sach va, sach tu, sach uu
sach xu » sach xa, cach xu, mach xu
ma hoi » mai hoi, xa hoi, ma hoa
vi su » va su, ve su, ki su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach vu) or (sach xu)) sang ma hoi. hieu qua ((cham luc) OR (nhan luc)) ban hanh vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach vu) OR (sach xu)) sang ma hoi. hieu qua ((cham luc) OR (nhan luc)) ban hanh vi su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach vu) or (sach xu)) sang ma hoi. hieu qua ((cham luc) OR (nhan luc)) ban hanh vi su triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach vu) or (sach xu)) sang ma hoi. hieu qua ((cham luc) OR (nhan luc)) ban hanh vi su triet*.