Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
va doanh » van doanh, vay doanh, va danh
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
hieu tu » chieu tu, hieu tuc, hien tu
tu cham » toc cham, thi cham
cua tre » cua triet, dua tren, cua thep
cuu tre » cau tren, cau treo
luc va » duc va, tuc va, loc va
cua te » cua tu

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