Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
luat thong » luat thuong, suat thong, xuat thong
hoc thieu » toc thieu, hoc hien
cong van » cong vang, song van, cong tan
cong san » cong tac
toan cao » toan ban, toan tap

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 - hanh trinh luat thong ((cong van) OR (cong san)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh luat thong ((cong van) OR (cong san)) toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh luat thong ((cong van) OR (cong san)) toan cao*.