Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
hanh trinh » canh tranh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
thanh lap » thanh san, phan lap, thanh hai
cong dan » cong san, cong tan, huong dan
phan cac » nhan cach, phan dau, phan lap

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) or (hanh chinh)) va nhung cong dan ((thanh lap) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - ((hanh trinh) OR (hanh chinh)) va nhung cong dan ((thanh lap) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - ((hanh trinh) or (hanh chinh)) va nhung cong dan ((thanh lap) or (phan cac))*.