Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
chu tinh » chau tinh, chua tinh, cuu tinh
tac tran » tan tran, tac trai, tac trong
tac tren » rac tren, tai tren, tap tren
hoi chu » hoi chuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi chu tinh - hanh tranh cua thong cong ((tac tran) OR (tac tren)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi chu tinh - hanh tranh cua thong cong ((tac tran) OR (tac tren)) cao".
• Adding a wildcard symbol may retrieve word variants: hoi chu tinh - hanh tranh cua thong cong ((tac tran) OR (tac tren)) cao*.