Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
thien dang » thien bang, thien danh, thien nang
tranh cua » doanh cua, manh cua
tien anh » tieng anh, tien manh, dien anh
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, cong tan, cong dong
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien dang) OR (tien anh)) - hanh tranh cua tong ((cong dan) OR (huong dan)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien dang) OR (tien anh)) - hanh tranh cua tong ((cong dan) OR (huong dan)) toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien dang) OR (tien anh)) - hanh tranh cua tong ((cong dan) OR (huong dan)) toan cao*.