Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
hanh tranh » canh tranh, hanh trinh, hanh trang
luan thong » luan phong, luan tuong, luat thong
thong cong » trong cong, tong cong, thong thong
cong vang » cong lang, cong quang, cong ngang
vang tuan » van tuan, vong tuan, quang 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: ((hoi chu) or (hoi chuc)) tinh - hanh tranh luan thong cong vang tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoi chu) OR (hoi chuc)) tinh - hanh tranh luan thong cong vang tuan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoi chu) or (hoi chuc)) tinh - hanh tranh luan thong cong vang tuan cau*.