Perhaps you should try some spelling variations:
quan trong » gian trong
quan dong » quang dong, quan long, quan hoang
chi tinh » chai tinh, chi minh, chi binh
anh bang » anh hoang, anh quang, tinh bang
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi tinh - anh bang ((quan trong) or (quan dong)) ((cong tan) or (cong ty)) tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi tinh - anh bang ((quan trong) OR (quan dong)) ((cong tan) OR (cong ty)) tran cau.
• Adding a wildcard symbol may retrieve word variants: doi chi tinh - anh bang ((quan trong) or (quan dong)) ((cong tan) or (cong ty)) tran cau*.