Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
bang cong » dang cong, bang song, hang cong
trung va » truong va, trang va, trung ha
tan toan » tan tran, tap toan, van 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 - thanh ((dung va) or (trung va)) ((nhung cong) or (bang cong)) tan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((dung va) OR (trung va)) ((nhung cong) OR (bang cong)) tan toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((dung va) or (trung va)) ((nhung cong) or (bang cong)) tan toan tap*.