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
hoc chieu » hoc thieu, ho chieu, hoc hien
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
ban than » ban thanh, van thanh, ban hang
van chat » cao chat

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 trinh quan dung cong ((ban than) or (van chat)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh trinh quan dung cong ((ban than) OR (van chat)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh trinh quan dung cong ((ban than) or (van chat)) ban*.