Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thong cong » trong cong, thong thong, phong chong
hoc thieu » toc thieu, hoc hien
trung cap » truong cao
tong cong » trong cong, cong cong, dung cong
manh toan » thanh toan, anh tuan, tinh toan
toan ban » van ban

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