Perhaps you should try some spelling variations:
cong nguong » cong nguon, cong thuong, cong luong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trang » thanh trung, canh tranh, hanh trinh
nguong dan » huong dan
hanh mang » nhanh mang, nhanh lang, thanh hang
toan tap » toan ban
phan cac » nhan cach, phan dau, phan lap

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 - ((hanh mang) OR (hanh trang)) cua cong nguong dan ((toan tap) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((hanh mang) OR (hanh trang)) cua cong nguong dan ((toan tap) OR (phan cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - ((hanh mang) OR (hanh trang)) cua cong nguong dan ((toan tap) or (phan cac))".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((hanh mang) OR (hanh trang)) cua cong nguong dan ((toan tap) or (phan cac))*.