Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
dung luong » dung thuong, dung phuong, dung truong
doanh cua » doanh luan
luong tai » dung tai, luong va
manh cua » ban cua
tai tuan » tri tuan, ta tuan, tai quan
tuan cau » toan cau, quan cau, tuan cu

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) OR (chieu xanh)) - hanh ((manh cua) or (doanh cua)) dung luong tai tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - hanh ((manh cua) OR (doanh cua)) dung luong tai tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu xanh)) - hanh ((manh cua) or (doanh cua)) dung luong tai tuan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu xanh)) - hanh ((manh cua) or (doanh cua)) dung luong tai tuan cau*.