Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
lang thanh » dang thanh, tang thanh, lang thang
tieu tinh » trieu tinh, tieu trinh, lieu tinh
quan dang » quang dang, quan dong, tuan dang
quan lang » quan hoang, gian lang, quan luan
lang toan » dang toan, lang thang, quang toan

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 - hanh trinh ((quan dang) OR (quan lang)) cong ((lang toan) or (lang thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - hanh trinh ((quan dang) OR (quan lang)) cong ((lang toan) OR (lang thanh)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - hanh trinh ((quan dang) OR (quan lang)) cong ((lang toan) or (lang thanh)) cao".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - hanh trinh ((quan dang) OR (quan lang)) cong ((lang toan) or (lang thanh)) cao*.