Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thieu xanh » chieu xanh, thien anh, thien danh
luat thong » luat thuong, xuat thong, luat trong
thuong van » thong van, truong van, thuong va
hieu manh » chieu xanh, hieu nganh, dieu hanh
van thanh » ban thanh, van tuan
thanh tay » thanh tai, thanh toan, thanh thuy

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) OR (hieu manh)) - hanh trinh ((luat thong) or (suat thong)) thuong van thanh tay~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - hanh trinh ((luat thong) OR (suat thong)) thuong van thanh tay.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (hieu manh)) - hanh trinh ((luat thong) or (suat thong)) thuong van thanh tay".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (hieu manh)) - hanh trinh ((luat thong) or (suat thong)) thuong van thanh tay*.