Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
nhan dang » nhan dan, phan dang, tran dang
chua cong » chuc cong, chua dong, chup cong
trong tan » trong quan, trong cac, trong ca
tan toan » tan tran, tap toan, van 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 - nhan dang ((chua cong) OR (cua cong)) trong tan toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - nhan dang ((chua cong) OR (cua cong)) trong tan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - nhan dang ((chua cong) OR (cua cong)) trong tan toan ban*.