Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
te sach » toc sach
hoi cua » hoi chuc
hai cua » thai cua, dai cua, lai cua
va dinh » van dinh, va kinh, va tinh
ve cham » va cham, ve chat, vu cham
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, mang may
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: te sach ky ((nang ma) or (nang cao)) hoi. hieu ve cham luc va dinh ((hai cua) OR (hoi cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang ma) OR (nang cao)) hoi. hieu ve cham luc va dinh ((hai cua) OR (hoi cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((nang ma) or (nang cao)) hoi. hieu ve cham luc va dinh ((hai cua) OR (hoi cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang ma) or (nang cao)) hoi. hieu ve cham luc va dinh ((hai cua) OR (hoi cua)) tre*.