Perhaps you should try some spelling variations:
sang trong » lang trong, mang trong, nang trong
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
dung cua » dung luan, dung cho
thong tu » phong tuc, thong tin, thong ke
toan tai » toan tap, doanh tai, toan ban
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: doi chieu xanh - hanh ((dung cua) or (thong tu)) sang trong cac ((toan tai) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh ((dung cua) OR (thong tu)) sang trong cac ((toan tai) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh ((dung cua) or (thong tu)) sang trong cac ((toan tai) or (toan cao))*.