Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
trung tuan » trung thanh, trung tam, tran tuan
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung cap, dung cua
trong van » trong cac
van khang » van khanh, van thanh, van quang
khang cau » hang cau, khang cu, khang chan

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 - manh ((trung cua) or (trung tuan)) dung trong van khang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - manh ((trung cua) OR (trung tuan)) dung trong van khang cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - manh ((trung cua) or (trung tuan)) dung trong van khang cau*.