Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
than phan » thanh phan, toan phan, thanh pham
ho chieu » theo chieu, hoc thieu, doi chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - hanh trinh quan ((hang cong) OR (dang cong)) than phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - hanh trinh quan ((hang cong) OR (dang cong)) than phan tu".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - hanh trinh quan ((hang cong) OR (dang cong)) than phan tu*.