Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
thanh tang » thanh thang, thanh trang, thanh hang
thanh tung » thanh cong
thang cong » thanh cong, thang long, thong cong
vang quang » van quang, dang quang, vung quang
hieu manh » chieu xanh, hieu nganh, dieu hanh
van thang » van thanh, van khang, van hang
cong vang » cong lang, cong quang, cong ngang
quang cao » nang cao, quang nam

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 (hieu manh)) - ((thanh tang) OR (thanh tung)) van thang cong vang quang cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - ((thanh tang) OR (thanh tung)) van thang cong vang quang cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (hieu manh)) - ((thanh tang) OR (thanh tung)) van thang cong vang quang cao*".