Perhaps you should try some spelling variations:
hanh trong » hanh trang, anh trong, hinh trong
hoc thieu » toc thieu, hoc hien
trong van » trong cac
dong cong » duong cong, dung cong, dang cong
theo chu » theo chieu, cho chu, chao chu
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 thieu) or (theo chu)) sang - hanh trong van dong cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chu)) sang - hanh trong van dong cong san toan cau*.