Perhaps you should try some spelling variations:
trinh cong » trinh dung
hanh tang » hanh trang, anh tang, hanh mang
qua trinh » qua kinh
ho chieu » theo chieu, hoc thieu, doi chieu
tang qua » tang quan, tang cua, tang quy
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban
ho lieu » so lieu, ho kieu, thi lieu
co lieu » cot lieu, co hieu, so lieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((ho lieu) or (co lieu))) or (ho chieu)) tinh - hanh tang qua trinh cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho lieu) OR (co lieu))) OR (ho chieu)) tinh - hanh tang qua trinh cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: ((((ho lieu) or (co lieu))) or (ho chieu)) tinh - hanh tang qua trinh cong san toan ban*.