Perhaps you should try some spelling variations:
chiet tach » chieu sach
thien hach » thien thanh, hien hanh
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
dang cong » dung cong
cua dang » cua cong, cua ban
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chiet tach) or (thien hach)) - ((hanh tranh) or (hanh trang)) cua dang cong van tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chiet tach) OR (thien hach)) - ((hanh tranh) OR (hanh trang)) cua dang cong van tuan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chiet tach) or (thien hach)) - ((hanh tranh) or (hanh trang)) cua dang cong van tuan cau*.