Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
hang cua » hang ca, huong cua, thong cua
mang cua » manh cua, dung cua, ban cua
cong cac » cuong cac, cong tac, cong cau
cac van » cac dan

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 ((hang cua) or (mang cua)) dung cong cac van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((hang cua) OR (mang cua)) dung cong cac van ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((hang cua) or (mang cua)) dung cong cac van ban*.