Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
ho chieu » theo chieu, hoc thieu, doi chieu
trinh va » trinh van, trinh vat, trinh ve
than tap » han tap, phan tap, than cap
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - hanh trinh va ((nhung cong) or (thong cong)) dan ((than tap) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh trinh va ((nhung cong) OR (thong cong)) dan ((than tap) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - hanh trinh va ((nhung cong) or (thong cong)) dan ((than tap) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh trinh va ((nhung cong) or (thong cong)) dan ((than tap) OR (toan tap))*.