Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
quang dong » quang dung, quang cuong, quang hoang
cong thanh » dong thanh, cong trinh, cong tan
theo dien » theo tieu, thu dien, thuy dien
dien sach » dien anh
quan dong » quan long, quan hoang, quan trong
san cau » van cau, ban cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo dien sach - hanh trinh ((quan dong) or (quang dong)) cong thanh san cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo dien sach - hanh trinh ((quan dong) OR (quang dong)) cong thanh san cau.
• Adding a wildcard symbol may retrieve word variants: theo dien sach - hanh trinh ((quan dong) or (quang dong)) cong thanh san cau*.