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
trung cap » truong cao, trung tam
dung cua » dung luan, dung cho
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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 ((dung cua) or (trung cap)) thong cong dan ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((dung cua) OR (trung cap)) thong cong dan ((than cau) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((dung cua) or (trung cap)) thong cong dan ((than cau) or (than cap))*.