Perhaps you should try some spelling variations:
toc thien » toc thieu, duoc thien, thom thien
ton thien » hoan thien, toan thiet, doan thien
hanh manh » hanh mang, lanh manh, hoang manh
cuong tap » luong tap, luong tai, cong tan
manh cua » doanh cua, ban cua
cong tac » cong ty
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: ((toc thien) or (ton thien)) thanh - hanh manh cua cong ((cuong tap) OR (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thien) OR (ton thien)) thanh - hanh manh cua cong ((cuong tap) OR (cong tac)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc thien) or (ton thien)) thanh - hanh manh cua cong ((cuong tap) OR (cong tac)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ((toc thien) or (ton thien)) thanh - hanh manh cua cong ((cuong tap) OR (cong tac)) toan cau*.