Perhaps you should try some spelling variations:
tuong cong » truong cong, trong cong, tong cong
chieu bang » chieu sang, chu bang, khien bang
ho chieu » theo chieu, hoc thieu, doi chieu
trang va » tran van
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap
tang va » tang van, thang va, tang vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu bang - hanh ((tang va) or (((trang va) OR (hang va)))) tuong cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu bang - hanh ((tang va) OR (((trang va) OR (hang va)))) tuong cong san toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu bang - hanh ((tang va) or (((trang va) OR (hang va)))) tuong cong san toan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu bang - hanh ((tang va) or (((trang va) OR (hang va)))) tuong cong san toan cau*.