Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trinh » canh tranh, hanh chinh
trinh thuc » trinh tu, trinh thi
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
van tuan » van quan, van ban, anh tuan
tuan tai » toan tai, quan tai, tan tai

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 thuc ((hang cong) OR (bang cong)) van tuan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - hanh trinh thuc ((hang cong) OR (bang cong)) van tuan tai".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - hanh trinh thuc ((hang cong) OR (bang cong)) van tuan tai*.