Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
manh tung » manh hung, thanh tung
dap nhung » vap nhung, va nhung, cam nhung
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai 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 - manh tung ((dap nhung) OR (dap ung)) cong tap toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - manh tung ((dap nhung) OR (dap ung)) cong tap toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - manh tung ((dap nhung) OR (dap ung)) cong tap toan tap*.