Perhaps you should try some spelling variations:
biet trinh » viet trinh, bien tinh, tien trinh
trinh han » trinh quan
tan thanh » tran thanh, tang thanh, toan thanh
van thanh » ban thanh, van tuan
cho quen » thoi quen, cao quyen, cho tuyen
tan than » tan tran, ban than, tam than
cho que » cho thue

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

• Performing a fuzzy search may retrieve terms with similar spellings: nhung ((cho que) or (cho quen)) van. biet trinh han ((((tan than) OR (tan thanh))) or (van thanh))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nhung ((cho que) OR (cho quen)) van. biet trinh han ((((tan than) OR (tan thanh))) OR (van thanh)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "nhung ((cho que) or (cho quen)) van. biet trinh han ((((tan than) OR (tan thanh))) or (van thanh))".
• Adding a wildcard symbol may retrieve word variants: nhung ((cho que) or (cho quen)) van. biet trinh han ((((tan than) OR (tan thanh))) or (van thanh))*.