Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
thong tac » thong cac, tuong tac, thong tai
tang cua » mang cua, hang cua, tang luan
dung cua » dung luan, dung cho
tac han » tac nhan, tac ha, tac can
han tap » han tai, toan tap, nhan tai

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 ((tang cua) or (dung cua)) thong thong tac han tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((tang cua) OR (dung cua)) thong thong tac han tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((tang cua) or (dung cua)) thong thong tac han tap*.