Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh vat » trinh van, trinh luat, sinh vat
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
ho chieu » theo chieu, hoc thieu, doi chieu
vat dung » van dung, va dung, viet dung
san toan » van toan, dan toan, manh toan
van tuan » van quan, van ban, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (ho chieu)) tinh - hanh trinh vat dung cong ((san toan) or (van tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (ho chieu)) tinh - hanh trinh vat dung cong ((san toan) OR (van tuan)) cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (ho chieu)) tinh - hanh trinh vat dung cong ((san toan) or (van tuan)) cau*.