Perhaps you should try some spelling variations:
toan thiet » hoan thien, luan thiet, toan tien
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
chua dong » cua dong, huy dong, hoa dong
dong san » cong san, dong bang, dong von
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap
ha dong » hoat dong, van dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toan thiet) or (hoc thieu)) tach - hanh tranh ((chua dong) OR (ha dong)) dong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toan thiet) OR (hoc thieu)) tach - hanh tranh ((chua dong) OR (ha dong)) dong san toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toan thiet) or (hoc thieu)) tach - hanh tranh ((chua dong) OR (ha dong)) dong san toan cau*".