Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
cham luc » cham soc, nhan luc, cham cuu
va doanh » van doanh, vay doanh, va danh
tu sach » su sach, te sach, tu cach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
van cua » vang cua, dan cua, nan cua
ban cua » ban quan
luc va » duc va, tuc va, loc va

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) or (thu sach)) ky nang ma hoa. hieu ve cham luc va doanh ((van cua) OR (ban cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang ma hoa. hieu ve cham luc va doanh ((van cua) OR (ban cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky nang ma hoa. hieu ve cham luc va doanh ((van cua) OR (ban cua)) triet*".