Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
thong cong » tong cong, thong thong, phong chong
hoc thieu » toc thieu, hoc hien
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan

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 quan ((thong cong) OR (trong cong)) ((van toan) or (van tuan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh quan ((thong cong) OR (trong cong)) ((van toan) OR (van tuan)) ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh quan ((thong cong) OR (trong cong)) ((van toan) or (van tuan)) ban*".