Perhaps you should try some spelling variations:
thong cong » tong cong, thong thong, phong chong
hoc thieu » toc thieu, hoc hien
canh manh » lanh manh, canh tranh, cach mang
ho chieu » theo chieu, doi chieu, mot chieu
manh cua » doanh cua, ban cua
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) xanh - canh manh cua ((thong cong) OR (trong cong)) tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - canh manh cua ((thong cong) OR (trong cong)) tan toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) xanh - canh manh cua ((thong cong) OR (trong cong)) tan toan tap*".