Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
thep tinh » thep hinh, thien tinh, diep tinh
quan dang » quang dang, quan lang, quan dong
dang cong » dung cong
van toan » van tuan, van tan, van thanh
van tai » von tai, van tuan
cot » cost

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

• Performing a fuzzy search may retrieve terms with similar spellings: cot thep tinh - hanh trinh quan dang cong ((van toan) or (van tai)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cot thep tinh - hanh trinh quan dang cong ((van toan) OR (van tai)) cao.
• Adding a wildcard symbol may retrieve word variants: cot thep tinh - hanh trinh quan dang cong ((van toan) or (van tai)) cao*.