Perhaps you should try some spelling variations:
thieu tinh » chieu tinh, thien tinh, lieu tinh
hanh trinh » hanh chinh
dang cong » dung cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
cua dang » cua cong, cua ban
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 ((thieu tinh) OR (trieu tinh)) - ((hanh trinh) or (canh tranh)) cua dang cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu tinh) OR (trieu tinh)) - ((hanh trinh) OR (canh tranh)) cua dang cong manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu tinh) OR (trieu tinh)) - ((hanh trinh) or (canh tranh)) cua dang cong manh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu tinh) OR (trieu tinh)) - ((hanh trinh) or (canh tranh)) cua dang cong manh toan ban*.