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
trang cua » tranh cua, trung cua, thang cua
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua
cong san » cong tac
san toan » van toan, dan toan, manh 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 ((trang cua) or (((tang cua) OR (mang cua)))) thong cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((trang cua) OR (((tang cua) OR (mang cua)))) thong cong san toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh ((trang cua) or (((tang cua) OR (mang cua)))) thong cong san toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((trang cua) or (((tang cua) OR (mang cua)))) thong cong san toan ban*.