Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trung » thanh trung, hanh trang, manh trung
hieu xanh » chieu xanh, hieu manh, dieu hanh
trung dap » trung cap, trung dai, trung dam
ung song » vung song, xuong song, nang song
song van » hoang van, trong van, duong van
tuan cau » toan cau, tuan cu, thuan cam
quan cau » quang cao, toan cau, quan ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu xanh) or (hieu nganh)) - hanh trung dap ung song van ((tuan cau) or (quan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu xanh) OR (hieu nganh)) - hanh trung dap ung song van ((tuan cau) OR (quan cau)).
• Adding a wildcard symbol may retrieve word variants: doc ((hieu xanh) or (hieu nganh)) - hanh trung dap ung song van ((tuan cau) or (quan cau))*.