Perhaps you should try some spelling variations:
trong doanh » trong nganh
doanh phan » doanh nhan, doan phan, doanh thanh
trinh han » trinh quan
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
trinh su » trinh san, trinh cau, trinh cua
trinh tu » trinh ky, trinh do

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu tinh - hanh ((((trinh su) or (trinh tu))) or (trinh han)) dung trong doanh phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tinh - hanh ((((trinh su) OR (trinh tu))) OR (trinh han)) dung trong doanh phan tu.
• Adding a wildcard symbol may retrieve word variants: theo chu tinh - hanh ((((trinh su) or (trinh tu))) or (trinh han)) dung trong doanh phan tu*.