Perhaps you should try some spelling variations:
lanh tranh » canh tranh, lan tranh, hanh trinh
tieu tinh » trieu tinh, tieu trinh, lieu tinh
lanh manh » lan anh, van manh, anh anh
bang cong » dang cong, bang song, hang cong
phan cong » thanh cong
van toan » van tuan, van tan, van 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: theo tieu tinh - ((lanh manh) OR (lanh tranh)) cua ((bang cong) or (phan cong)) van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - ((lanh manh) OR (lanh tranh)) cua ((bang cong) OR (phan cong)) van toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - ((lanh manh) OR (lanh tranh)) cua ((bang cong) or (phan cong)) van toan ban".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - ((lanh manh) OR (lanh tranh)) cua ((bang cong) or (phan cong)) van toan ban*.