Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien danh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
thien anh » thien danh, tien anh, thien thanh
trung pha » trung phan, trung phat, trung ha
tac than » tac thanh, tam than, tac nhan
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 ((thieu xanh) OR (thien anh)) - thanh trung pha ((nhung cong) or (thong cong)) tac than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - thanh trung pha ((nhung cong) OR (thong cong)) tac than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (thien anh)) - thanh trung pha ((nhung cong) or (thong cong)) tac than cap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (thien anh)) - thanh trung pha ((nhung cong) or (thong cong)) tac than cap*.