Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
manh cua » doanh cua, ban 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 - canh manh cua ((hang cong) OR (dang cong)) tinh ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh manh cua ((hang cong) OR (dang cong)) tinh ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - canh manh cua ((hang cong) OR (dang cong)) tinh ((toan tap) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh manh cua ((hang cong) OR (dang cong)) tinh ((toan tap) or (toan ban))*.