Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
thong cua » thong quan, thong tu, huong cua
dang cong » dung cong
xuat phan » thuat phan, xuat nhap, xuat khau
luan phan » luan van, luan hoan
mang cua » manh cua, dung cua, ban cua

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