Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh vat » trinh van, trinh luat, sinh vat
vat nhung » va nhung, vap nhung, vai nhung
cong dung » cuong dung, cong luong, thong dung
toan ban » van ban
toan cao » 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 chieu xanh - hanh trinh vat nhung ((cong dung) or (cong dong)) ((toan ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh trinh vat nhung ((cong dung) OR (cong dong)) ((toan ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh trinh vat nhung ((cong dung) or (cong dong)) ((toan ban) or (toan cao))*.