Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
nhung dong » nhung don, nhung cong, nhung dung
dong thanh » truong thanh
thanh tuan » thanh toan, thanh xuan, thanh thanh
hoc thieu » toc thieu, hoc hien
trinh han » trinh quan
tinh cua » trinh cua, sinh cua, tinh chat
tuan tai » toan tai, quan tai, tan tai
luat » luan, xuat

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 ((((trinh han) or (trinh luat))) or (tinh cua)) nhung dong thanh tuan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - hanh ((((trinh han) OR (trinh luat))) OR (tinh cua)) nhung dong thanh tuan tai.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - hanh ((((trinh han) or (trinh luat))) or (tinh cua)) nhung dong thanh tuan tai*.