Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh toan » tinh toan, thanh toan, trinh han
toan nhung » toan chung, toan khung, doanh nhung
cong ngang » cong nhan, cong lang, cong nong
cong quang » luong quang, thong quang, duong quang
tien manh » tien thanh, tieng anh, tran manh
tien anh » tieng anh, dien anh, tien thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((tien anh) OR (tien manh)) - hanh trinh toan nhung ((cong ngang) or (cong quang)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien anh) OR (tien manh)) - hanh trinh toan nhung ((cong ngang) OR (cong quang)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tien anh) OR (tien manh)) - hanh trinh toan nhung ((cong ngang) or (cong quang)) toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((tien anh) OR (tien manh)) - hanh trinh toan nhung ((cong ngang) or (cong quang)) toan ban*.