Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trinh cua » trinh luat, trinh quan, trinh luan
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
tinh cua » sinh cua, tinh chat, tranh cua
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 - thanh ((tinh cua) OR (trinh cua)) ((dung cong) or (thong cong)) manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((tinh cua) OR (trinh cua)) ((dung cong) OR (thong cong)) manh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh ((tinh cua) OR (trinh cua)) ((dung cong) or (thong cong)) manh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((tinh cua) OR (trinh cua)) ((dung cong) or (thong cong)) manh toan ban*.