Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh than » thanh thanh, thanh thang, thanh toan
thong cong » trong cong, tong cong, thong thong
than cua » nhan cua, thai cua, ban cua
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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 (chieu tinh)) - thanh than cua ((thong cong) or (dung trong)) dan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu tinh)) - thanh than cua ((thong cong) OR (dung trong)) dan than tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (chieu tinh)) - thanh than cua ((thong cong) or (dung trong)) dan than tap*.