Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh toan » tinh toan, thanh toan, trinh han
thong cong » trong cong, tong cong, thong thong
hoc trieu » hoc thieu, hoc tieu, hoc dieu
manh toan » thanh toan, anh tuan, tinh toan
van thanh » ban thanh, van tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc trieu tinh - hanh trinh toan thong cong ((manh toan) or (van thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc trieu tinh - hanh trinh toan thong cong ((manh toan) OR (van thanh)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc trieu tinh - hanh trinh toan thong cong ((manh toan) or (van thanh)) cau*.