Perhaps you should try some spelling variations:
trung thanh » truong thanh
trung tham » trung tam, trung thang, trung ha
nhung cong » dung cong, thong cong, hang cong
hien sach » dien sach, kien sach, thien hach
cong luan » tong luan, cong tuan, dong luan
luan hoan » luan van
hoan tu » hoang tu, han tu, doan tu

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 - thanh ((trung tham) OR (trung thanh)) nhung cong luan hoan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien sach - thanh ((trung tham) OR (trung thanh)) nhung cong luan hoan tu".
• Adding a wildcard symbol may retrieve word variants: hoc hien sach - thanh ((trung tham) OR (trung thanh)) nhung cong luan hoan tu*.