Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
dua tren » dung tren
nang ma » tang ma, sang ma, nang cao
dao duc » giao duc, tao duoc
tan anh » tuan anh, tran anh, toan anh
anh bai » sach bai, danh bat, hinh bai
anh y » hanh y, anh _

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat ((anh y) OR (anh d)) nang ma hoa. hieu van dao duc tan anh bai ((dua tren) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((anh y) OR (anh d)) nang ma hoa. hieu van dao duc tan anh bai ((dua tren) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((anh y) OR (anh d)) nang ma hoa. hieu van dao duc tan anh bai ((dua tren) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: thuat ((anh y) OR (anh d)) nang ma hoa. hieu van dao duc tan anh bai ((dua tren) or (cua triet))*.