Perhaps you should try some spelling variations:
thieu tach » thien hach, chiet tach, chieu sach
hanh huong » thanh huong, anh huong, manh huong
doan phan » doanh phan, toan phan, doanh nhan
cong dan » cong san, cong tan, huong dan
dan hanh » dang hanh, dan khanh, dan thanh
dan phan » dan chan, van phan, dam phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu tach - thanh cong dan hanh huong ((dan phan) OR (doan phan)) lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu tach - thanh cong dan hanh huong ((dan phan) OR (doan phan)) lap*".