Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh hanh » hanh han, xanh hanh, nhanh thanh
cong manh » cong danh, duong manh, cong thanh
va thong » va thuong, va phuong, he thong
toan cao » toan tap
toan ban » van ban
hanh va » hang va, hanh vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - hanh hanh va thong cong manh ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh hanh va thong cong manh ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh hanh va thong cong manh ((toan cao) or (toan ban))*.