Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trang » thanh trung, hanh trinh, minh trang
hoc chieu » hoc thieu, ho chieu, hoc hien
cua dung » cua dang, cua dong, qua dung
cong tap » cuong tap, cong tan, tong tap
cong tac » cong ty
quan ban » quang ban, qua ban, quan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - ((hanh trang) or (canh tranh)) cua dung ((cong tap) OR (cong tac)) quan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - ((hanh trang) OR (canh tranh)) cua dung ((cong tap) OR (cong tac)) quan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu tinh - ((hanh trang) or (canh tranh)) cua dung ((cong tap) OR (cong tac)) quan ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - ((hanh trang) or (canh tranh)) cua dung ((cong tap) OR (cong tac)) quan ban*.