Perhaps you should try some spelling variations:
tran thanh » ban thanh, quan thanh
thong cong » trong cong, tong cong, thong thong
van thanh » ban thanh, van tuan
tranh cua » manh cua
doanh cua » doanh luan
cong san » cong tac
san toan » van toan, dan toan, manh 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: hoc ((tran thanh) or (van thanh)) - hanh ((tranh cua) OR (doanh cua)) thong cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tran thanh) OR (van thanh)) - hanh ((tranh cua) OR (doanh cua)) thong cong san toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tran thanh) or (van thanh)) - hanh ((tranh cua) OR (doanh cua)) thong cong san toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((tran thanh) or (van thanh)) - hanh ((tranh cua) OR (doanh cua)) thong cong san toan cau*.