Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
thong cong » trong cong, tong cong, thong thong
cong toan » cong tan, cong hoan, cong tuan
cong cong » cong dong, trong cong, dung cong
bung dan » dung dan, tung dan, hung dan
dan cao » dan ca, dam cao, dan bao

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

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