Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trinh van » trinh quan, trinh toan, dinh van
trinh han » trinh quan
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
san tuan » van tuan, san luan, san quan
tuan tap » toan tap, tuan tai, tuyen tap

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 van) or (trinh han)) dung cong san tuan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - hanh ((trinh van) OR (trinh han)) dung cong san tuan tap.
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - hanh ((trinh van) or (trinh han)) dung cong san tuan tap*.