Perhaps you should try some spelling variations:
khan thanh » khoan thanh, khanh thanh, phan thanh
hanh trinh » canh tranh
dang cong » dung cong
cong khan » cong khanh, cong nhan, cong phan
thanh tai » thanh hai, thanh toan, doanh tai
ho chieu » theo chieu, hoc thieu, doi chieu
cua dang » cua cong, cua ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi khi)) xanh - ((hanh trinh) OR (hanh chinh)) cua dang cong khan thanh tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi khi)) xanh - ((hanh trinh) OR (hanh chinh)) cua dang cong khan thanh tai~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi khi)) xanh - ((hanh trinh) OR (hanh chinh)) cua dang cong khan thanh tai*.