Perhaps you should try some spelling variations:
cac doanh » cac dan, cac dang, van doanh
nang cau » nang cao, hang cau, nang dau
hieu van » hieu va, thien van, lieu va
sanh ky » hanh ky, sang ky, nganh ky
van cau » van dau, van hau, van chat
cau tuc » cau truc, cau tu, cau luc
tuc cac » tu cac, tich cac
di cua » doi cua, do cua, da cua
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: do sanh ky nang cau hoi. hieu van cau tuc cac doanh ((((di cua) OR (dai cua))) or (de cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: do sanh ky nang cau hoi. hieu van cau tuc cac doanh ((((di cua) OR (dai cua))) OR (de cua)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "do sanh ky nang cau hoi. hieu van cau tuc cac doanh ((((di cua) OR (dai cua))) or (de cua)) tu".
• Adding a wildcard symbol may retrieve word variants: do sanh ky nang cau hoi. hieu van cau tuc cac doanh ((((di cua) OR (dai cua))) or (de cua)) tu*.