Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
lieu tinh » trieu tinh, diep tinh, bien tinh
doanh cua » doanh luan
manh cua » ban cua
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap
ho lieu » so lieu, co lieu, ho kieu

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - hanh ((manh cua) OR (doanh cua)) nhung cong tan toan cau~".
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - hanh ((manh cua) OR (doanh cua)) nhung cong tan toan cau*.