Perhaps you should try some spelling variations:
thang thanh » tang thanh, thanh thanh, thong thanh
hanh trinh » canh tranh, hanh chinh
cong thang » cong thanh, cang thang, cong thong
quan hang » quan hoang, quan lang, qua hang
quan hanh » quan thanh, quang thanh, quang khanh
thanh cac » hanh cac, thanh bac, thanh ca
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang

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

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