Perhaps you should try some spelling variations:
thieu sach » chieu sach, thien hach, hieu cach
cong thanh » dong thanh, cong trinh, truong thanh
hoc thieu » toc thieu, hoc hien
hanh mang » nhanh mang, hanh trang, nhanh lang
cua nhung » va nhung
anh tang » anh bang, anh dang, anh nang
cong tan » cong tac, cong san, cong ty
phan tap » phan lap, han tap, pha tap

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