Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
thong cua » thong quan, huong cua
trong tac » trong cac, trong tan, trong tuc
tuong tac » cong tac, luong tai, tuong lai
thong tu » phong tuc, thong tin, thong ke
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 ((thong cua) or (thong tu)) song ((trong tac) or (tuong tac)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh ((thong cua) OR (thong tu)) song ((trong tac) OR (tuong tac)) toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh ((thong cua) or (thong tu)) song ((trong tac) or (tuong tac)) toan cao*.