Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tung » thanh cong
tuan duong » tuyen duong, tuong duong, van duong
cong quang » luong quang, thong quang, duong quang
tung tuan » trung tuan, hung tuan, quang tuan
cong lang » cong vang, cong luong, cong ngang
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu xanh - thanh tung tuan duong ((cong lang) or (cong quang)) ((toan cau) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - thanh tung tuan duong ((cong lang) OR (cong quang)) ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu xanh - thanh tung tuan duong ((cong lang) or (cong quang)) ((toan cau) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - thanh tung tuan duong ((cong lang) or (cong quang)) ((toan cau) OR (toan cao))*.