Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
trung tuan » trung thanh, tran tuan, truong thanh
cong thanh » dong thanh, cong trinh, cong tan
trang tuan » tran tuan, trong tuan, tran xuan
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
tran van » luan van

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 ((trung tuan) OR (trung tam)) dung cong thanh ((trang tuan) or (tran van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((trung tuan) OR (trung tam)) dung cong thanh ((trang tuan) OR (tran van)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh ((trung tuan) OR (trung tam)) dung cong thanh ((trang tuan) or (tran van))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((trung tuan) OR (trung tam)) dung cong thanh ((trang tuan) or (tran van))*.