Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nhan viec » nhan vien, nhan viet, nha viec
quoc van » quoc va, quoc ban, quoc lan
thu sang » thu hang, thu san, thu bang
tang ma » mang may, tang van
sang ky » sang kyo, dang ky, tang ky
hieu tu » chieu tu, hieu tuc, hien tu
tu cham » toc cham, thi cham
tang ha » lang ha, trung ha, tang van
oc van » hoc van, luoc van

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sang ky ((tang ha) or (tang ma)) noi. hieu tu cham ((oc van) OR (quoc van)) nhan viec cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sang ky ((tang ha) OR (tang ma)) noi. hieu tu cham ((oc van) OR (quoc van)) nhan viec cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sang ky ((tang ha) or (tang ma)) noi. hieu tu cham ((oc van) OR (quoc van)) nhan viec cua triet".
• Adding a wildcard symbol may retrieve word variants: thu sang ky ((tang ha) or (tang ma)) noi. hieu tu cham ((oc van) OR (quoc van)) nhan viec cua triet*.