Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tung » thanh cong
thong tran » thong tren, phuong tran, thong thanh
thong than » thong thanh, thong phan, thong nhan
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua khong, cua tong
tung cua » trung cua, tuong cua, dung cua
tran ban » tranh ban, toan ban, tran bai
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 tung cua thong ((thong tran) or (thong than)) ((tran ban) OR (tran van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tung cua thong ((thong tran) OR (thong than)) ((tran ban) OR (tran van)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh tung cua thong ((thong tran) or (thong than)) ((tran ban) OR (tran van))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tung cua thong ((thong tran) or (thong than)) ((tran ban) OR (tran van))*.