Perhaps you should try some spelling variations:
truong long » trong long, trung long, truong cong
hien sach » dien sach, kien sach, thien hach
long span » cong san, dong san, nong san
span phan » san phan, san pham, luan phan
anh tang » anh bang, anh dang, anh nang
tang cac » bang cac, hang cac, tang ca
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien sach) or (tieng anh)) - anh tang cac truong long span phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien sach) OR (tieng anh)) - anh tang cac truong long span phan lap*.