Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
tong cong » trong cong, dung cong, dang cong
cong cong » cong dong, trong cong, dung cong
tinh cua » trinh cua, sinh cua, tinh chat
dan toan » van toan, dan than, manh 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: hoc thieu xanh - hanh tinh cua ((tong cong) OR (cong cong)) dan toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh tinh cua ((tong cong) OR (cong cong)) dan toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh tinh cua ((tong cong) OR (cong cong)) dan toan tap*.