Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
lanh tranh » canh tranh, lan tranh, sach tranh
hanh trinh » canh tranh, hanh chinh
dong chung » dung chung, cong chung, dong hung
chung van » phung van, nhung van, chung han
cua dong » chua dong, cua cong, cua dang
than tap » toan tap, han tap, than cap
phan tap » phan lap, han tap, pha tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - ((lanh tranh) or (hanh trinh)) cua dong chung van ((than tap) OR (phan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((lanh tranh) OR (hanh trinh)) cua dong chung van ((than tap) OR (phan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - ((lanh tranh) or (hanh trinh)) cua dong chung van ((than tap) OR (phan tap))".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((lanh tranh) or (hanh trinh)) cua dong chung van ((than tap) OR (phan tap))*.