Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trinh » hanh chinh
trong san » trong cac, cong san, dong san
ho chieu » theo chieu, hoc thieu, doi chieu
van dung » van dong, xay dung, tin dung
san toan » van toan, dan toan, manh toan
toan ban » van ban
va dung » va duong, vat dung, va ung

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) or (canh tranh)) ((va dung) OR (van dung)) trong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - ((hanh trinh) OR (canh tranh)) ((va dung) OR (van dung)) trong san toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - ((hanh trinh) or (canh tranh)) ((va dung) OR (van dung)) trong san toan ban*".