Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh thong » anh thong, hanh trong, hang thong
dung quang » dang quang, dung quan, luong quang
dung dung » ung dung, dung ung, dung dong
thanh tap » thanh lap, thanh tai, thanh tay
thong su » thong tu, thong cua, thong qua
toan » tran

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu xanh - hanh thong su dung dung quang ((thanh tap) or (tinh toan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - hanh thong su dung dung quang ((thanh tap) OR (tinh toan)).
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - hanh thong su dung dung quang ((thanh tap) or (tinh toan))*.