Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
mang luan » tang luan, bang luan, mong luan
hang luan » tang luan, dung luan
thong tan » thong than, thong tran, thong tin
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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 ((mang luan) or (hang luan)) thong thong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((mang luan) OR (hang luan)) thong thong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((mang luan) or (hang luan)) thong thong tan toan cao*.