Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
lang van » dang van, tang van, hoang van
hieu va » lieu va, hieu qua
tai cua » thai cua, tri cua, dai cua
va danh » va dinh, va dan, va hanh
va cham » va chat, va tham
lang xa » lang ha, dang xay
bai ky » ban ky, sai ky, bac ky
luc va » duc va, tuc va, loc va
te bai » te bao, te tai, te ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: te bai ky ((lang xa) OR (lang van)) hoi. hieu va cham luc va danh ((tai cua) or (tai cuc)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te bai ky ((lang xa) OR (lang van)) hoi. hieu va cham luc va danh ((tai cua) OR (tai cuc)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te bai ky ((lang xa) OR (lang van)) hoi. hieu va cham luc va danh ((tai cua) or (tai cuc)) tre".
• Adding a wildcard symbol may retrieve word variants: te bai ky ((lang xa) OR (lang van)) hoi. hieu va cham luc va danh ((tai cua) or (tai cuc)) tre*.