Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
thien anh » thien danh, thien thanh, thien chanh
tung pham » hung pham, trung phan, dung phan
tien anh » tieng anh, tien manh, dien anh
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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

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