Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
thieu sach » chieu sach, thien hach, hieu cach
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
hanh tang » anh tang, hanh mang, hanh tung
cua nhung » va nhung
cong doan » cong dan, cong hoan, dong doanh
phan dau » phan tu, hang dau
phan cac » nhan cach, phan lap, phan van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - ((hanh tang) OR (hanh trang)) cua nhung cong doan ((phan dau) OR (phan cac))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - ((hanh tang) OR (hanh trang)) cua nhung cong doan ((phan dau) or (phan cac))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - ((hanh tang) OR (hanh trang)) cua nhung cong doan ((phan dau) or (phan cac))*.