Perhaps you should try some spelling variations:
hoc thieu » toc thieu
cach manh » cach mang, cach nhanh, sach danh
tong cong » trong cong, cong cong, dung cong
manh cua » doanh cua, ban cua
cua tong » cua cong, cua dong, cua nong
cong san » cong tac
san toan » van toan, dan toan, manh 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: ((((hoc dieu) or (hoc thieu))) or (hoc hien)) hanh - cach manh cua tong cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((hoc dieu) OR (hoc thieu))) OR (hoc hien)) hanh - cach manh cua tong cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: ((((hoc dieu) or (hoc thieu))) or (hoc hien)) hanh - cach manh cua tong cong san toan cau*.