Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
nhanh lang » nhanh thang, nhan dang, nhanh dong
cong nganh » cong ngang, trong nganh, duong nganh
nganh toan » nganh thanh, thanh toan, manh toan
choi dan » hoi dan, hoc dan, hoi dap
va thong » va thuong, va phuong, he thong
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((choi dan) OR (hoa dan)) - ((nhanh lang) OR (nhanh quang)) va thong cong nganh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((choi dan) OR (hoa dan)) - ((nhanh lang) OR (nhanh quang)) va thong cong nganh toan ban".
• Adding a wildcard symbol may retrieve word variants: doi ((choi dan) OR (hoa dan)) - ((nhanh lang) OR (nhanh quang)) va thong cong nganh toan ban*.