Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
thuong cao » truong cao, thong cao, thuong chau
cong thong » cong thuong, cong trong, dong thong
hieu tinh » chieu tinh, lieu tinh, hieu binh
kieu tinh » lieu tinh, trieu tinh, diep tinh
cao cong » cac cong, cao dang, cua cong
dan van » dang van, doan van, tan van
dao van » do van, dang van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hieu tinh) or (kieu tinh)) - thanh thuong cao cong thong ((dan van) or (dao van)) dinh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hieu tinh) OR (kieu tinh)) - thanh thuong cao cong thong ((dan van) OR (dao van)) dinh.
• Adding a wildcard symbol may retrieve word variants: doc ((hieu tinh) or (kieu tinh)) - thanh thuong cao cong thong ((dan van) or (dao van)) dinh*.