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
chi tinh » chai tinh, chi minh, chi binh
tac tran » tac trai, tac tren, tac trong
doi chi » doi khi

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

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