Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
vien nganh » vien thanh
canh trang » canh tranh, hanh trang, banh trang
tang huong » tang cuong, tang duong, hang thuong
trang cho » trong cho, trang o, sang cho
huong ban » huong dan, huong ben, huong lan
cho tang » cao tang, kho tang, cho hang
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, 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: doc ((chieu xanh) or (vien nganh)) - canh trang cho tang huong ban ((than cau) OR (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((chieu xanh) OR (vien nganh)) - canh trang cho tang huong ban ((than cau) OR (toan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((chieu xanh) or (vien nganh)) - canh trang cho tang huong ban ((than cau) OR (toan cau))".
• Adding a wildcard symbol may retrieve word variants: doc ((chieu xanh) or (vien nganh)) - canh trang cho tang huong ban ((than cau) OR (toan cau))*.