Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
thanh thong » thanh thuong, thanh hong, thanh thang
thieu xanh » chieu xanh, hieu manh, thien anh
chieu sach » chinh sach, chiet tach, chieu sang
van thanh » ban thanh, van tuan
thanh tap » thanh lap, thanh tai, thanh tay
thong va » thong cua, truong va, thong qua
cong van » cong vang, cong san, song van

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 sach)) - thanh thong va thuong cong van thanh tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu sach)) - thanh thong va thuong cong van thanh tap*.