Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc chinh » hoan chinh, hoc sinh, hoc kinh
tranh cua » doanh cua, manh cua
tong cong » cong cong, dung cong, dang cong
ho chinh » cho chinh, hoa chinh, do chinh
tan toan » tan tran, tap toan, van toan
toan cau » 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: ((ho chinh) or (hoc chinh)) sach - hanh tranh cua ((tong cong) OR (trong cong)) tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chinh) OR (hoc chinh)) sach - hanh tranh cua ((tong cong) OR (trong cong)) tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chinh) or (hoc chinh)) sach - hanh tranh cua ((tong cong) OR (trong cong)) tan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chinh) or (hoc chinh)) sach - hanh tranh cua ((tong cong) OR (trong cong)) tan toan cau*.