Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
va cham » va chat, va tham
dan tai » van tai, dan thi, han tai
cua tre » cuu tre, cua triet, dua tren
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va, hieu qua
ky danh » ky dang
va dan » ca dan, va dao, va dau
luc va » duc va, tuc va, loc va
ky anh » ly anh, ty anh
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te bao ((ky danh) OR (ky anh)) xay hoi. hieu va cham luc va dan tai ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te bao ((ky danh) OR (ky anh)) xay hoi. hieu va cham luc va dan tai ((cua tre) or (cua te))~".
• Adding a wildcard symbol may retrieve word variants: te bao ((ky danh) OR (ky anh)) xay hoi. hieu va cham luc va dan tai ((cua tre) or (cua te))*.