Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, van manh
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, doi chieu, mot chieu
cong van » cong vang, cong san, song van
van vat » van chat, nhan vat
vat ban » van ban, va ban, vat ran

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sang - ((canh manh) OR (cach mang)) cua thong cong van vat ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) sang - ((canh manh) OR (cach mang)) cua thong cong van vat ban~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sang - ((canh manh) OR (cach mang)) cua thong cong van vat ban*.