Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, truong thanh
sinh sach » chinh sach, sinh san, sang sach
tran tuan » tran xuan, tran quang, tran thanh
dang cong » dung cong
chat cam » chat cao, thuat cam, chat va
cong co » dong co, cong cu, cong so
co chat » cao chat, co cham, co hat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sinh sach - hanh ((trung tuan) or (tran tuan)) dang cong co chat cam~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sinh sach - hanh ((trung tuan) OR (tran tuan)) dang cong co chat cam*.