Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
trung tuan » trung thanh, trung tam, truong thanh
hoc thieu » toc thieu, hoc hien
tran tuan » tran xuan, tran quang, tran thanh
dung cong » dung trong
thanh lap » thanh san, phan lap, thanh hai
cong dan » cong san, cong tan, huong dan
nhan cua » nhat cua, nhan luc, nhan su

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - thanh ((trung tuan) or (tran tuan)) dung cong dan ((nhan cua) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh ((trung tuan) OR (tran tuan)) dung cong dan ((nhan cua) OR (thanh lap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh ((trung tuan) or (tran tuan)) dung cong dan ((nhan cua) or (thanh lap))*.