Perhaps you should try some spelling variations:
truong dong » trong dong, truong dang, tuong dong
trung hoc » trung quoc
dong vang » dong bang, dong van, cong vang
vang phan » van phan, nang phan, quang phan
thuc dan » thuc hanh, thuc vat
trung ha » trung tam, trung cap
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 ((thuc dan) or (hoc dan)) - hanh ((trung ha) OR (trung hoc)) truong dong vang phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thuc dan) OR (hoc dan)) - hanh ((trung ha) OR (trung hoc)) truong dong vang phan lap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thuc dan) or (hoc dan)) - hanh ((trung ha) OR (trung hoc)) truong dong vang phan lap*".