Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trung » thanh trung, manh trung, danh trung
hanh trang » thanh trung, canh tranh, hanh trinh
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
cua dang » cua cong, cua ban
cong tac » cong ty
toan tai » toan tap, doanh tai, toan cao
toan ban » van 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 tinh - ((hanh trung) OR (hanh trang)) cua dang cong tac ((toan tai) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - ((hanh trung) OR (hanh trang)) cua dang cong tac ((toan tai) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - ((hanh trung) OR (hanh trang)) cua dang cong tac ((toan tai) or (toan ban))*.