Perhaps you should try some spelling variations:
thanh trung » thanh tung
thuyet anh » thuyet kinh, thuy anh, thuyet dan
trung tuan » trung thanh, trung tam, tran tuan
thong cong » tong cong, thong thong, phong chong
thiet anh » thien anh, thien danh, thich anh
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thiet anh) OR (thuyet anh)) - thanh trung tuan ((thong cong) or (trong cong)) dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thiet anh) OR (thuyet anh)) - thanh trung tuan ((thong cong) OR (trong cong)) dan than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thiet anh) OR (thuyet anh)) - thanh trung tuan ((thong cong) or (trong cong)) dan than cap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thiet anh) OR (thuyet anh)) - thanh trung tuan ((thong cong) or (trong cong)) dan than cap*.