Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
30 trieu » 25 trieu
thang va » hang va, trang va, thong va
cong hai » cong thai, cong ha, hoang hai
tang va » trang va, tang van, tang vat
hai tap » hai thap, bai tap, han tap
tap cao » tap co, tao cao, tap cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: 30 trieu tinh - hanh ((tang va) OR (thang va)) thong cong hai tap cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "30 trieu tinh - hanh ((tang va) OR (thang va)) thong cong hai tap cao".
• Adding a wildcard symbol may retrieve word variants: 30 trieu tinh - hanh ((tang va) OR (thang va)) thong cong hai tap cao*.