Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
luan nhung » luan chung, luan hung, quan nhung
cong lang » cong vang, cong luong, cong quang
chu tinh » chau tinh, chua tinh, cuu tinh
cong van » cong vang, cong san, song van
tuan cau » toan cau, quan cau, tuan cu
hoi chu » hoi chuc

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 tinh - hanh trinh luan nhung ((cong van) or (cong lang)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi chu tinh - hanh trinh luan nhung ((cong van) OR (cong lang)) tuan cau.
• Adding a wildcard symbol may retrieve word variants: hoi chu tinh - hanh trinh luan nhung ((cong van) or (cong lang)) tuan cau*.