Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
trong quan » thong quan, tong quan, thong quang
hoc thieu » toc thieu, hoc hien
tran tuan » tran xuan, tran quang, tran thanh
cong van » cong vang, cong san, song van
van tai » von tai, van tuan
tai cao » thai cao, tao cao, tai sao

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 - hanh ((trong quan) or (tran tuan)) trong cong van tai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh ((trong quan) OR (tran tuan)) trong cong van tai cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh ((trong quan) or (tran tuan)) trong cong van tai cao*.