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
hang cong » dang cong, hang nong, bang cong
trinh va » trinh van, trinh vat, trinh ve
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

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 va ((dung trong) or (hang cong)) dan ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh trinh va ((dung trong) OR (hang cong)) dan ((toan tai) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh trinh va ((dung trong) or (hang cong)) dan ((toan tai) or (toan ban))*.