Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
luan phan » luan van
luan hoan » luan van
van thanh » ban thanh, van tuan
thanh cac » hanh cac, thanh bac, thanh ca
tong van » trong van, thong van, tang van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - hanh tang ((luan phan) OR (luan hoan)) tong van thanh cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh tang ((luan phan) OR (luan hoan)) tong van thanh cac".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh tang ((luan phan) OR (luan hoan)) tong van thanh cac*.