Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
dong cong » duong cong, dung cong, dang cong
cong tinh » cong trinh, cong vinh, long tinh
toc hieu » doc hieu, hoc thieu, thuc hieu
cua dong » chua dong, cua cong, cua dang
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc hieu) or (toc thieu)) manh - hanh tranh cua dong cong tinh ((toan tap) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc hieu) OR (toc thieu)) manh - hanh tranh cua dong cong tinh ((toan tap) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc hieu) or (toc thieu)) manh - hanh tranh cua dong cong tinh ((toan tap) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ((toc hieu) or (toc thieu)) manh - hanh tranh cua dong cong tinh ((toan tap) OR (toan ban))*.