Perhaps you should try some spelling variations:
trinh luan » trinh luat, trinh han, trinh toan
trinh quan » trinh luat, trinh han
nhung tung » nhung tuong, nhung dung, nhung vung
hieu xanh » chieu xanh, hieu manh, hieu nganh
doc hieu » toc thieu, hoc thieu, hoc hien
tung anh » trung anh, tung manh, hung anh
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: doc hieu xanh - hanh ((((trinh luan) or (trinh quan))) or (tinh quang)) nhung tung anh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh ((((trinh luan) OR (trinh quan))) OR (tinh quang)) nhung tung anh tuan cau.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh ((((trinh luan) or (trinh quan))) or (tinh quang)) nhung tung anh tuan cau*.