Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
manh trung » manh tung, thanh trung, manh hung
thuat hung » thuat dung, thuat ung, thuat xung
hoc thieu » toc thieu, hoc hien
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: hoc thieu xanh - manh trung ((thuat hung) OR (thuat song)) cong tac toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - manh trung ((thuat hung) OR (thuat song)) cong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - manh trung ((thuat hung) OR (thuat song)) cong tac toan ban*.