Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cdinh cua » chinh cua, dinh cuu, sinh cua
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
dinh cua » dinh cuu, sinh cua, dinh cu
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu sach - hanh ((cdinh cua) or (dinh cua)) nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - hanh ((cdinh cua) OR (dinh cua)) nhung cong tan toan cau*.