Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh huong, thanh cuong
thanh tung » thanh cong
thien anh » thien danh, thien thanh, thien chanh
trong van » trong cac
tien anh » tieng anh, tien manh, dien anh
qua dung » quang dung, su dung, qua song
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien anh) OR (tien anh)) - ((thanh tuong) or (thanh tung)) qua dung trong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien anh) OR (tien anh)) - ((thanh tuong) OR (thanh tung)) qua dung trong van tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien anh) OR (tien anh)) - ((thanh tuong) or (thanh tung)) qua dung trong van tuan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) OR (tien anh)) - ((thanh tuong) or (thanh tung)) qua dung trong van tuan ban*.