Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
tan thanh » tran thanh, tang thanh, toan thanh
thanh cha » thanh ha, thanh nha, thanh phan
hanh dan » thanh dan, hanh san, canh dan
cong tan » cong tac, cong san, cong thanh
hieu ca » hieu cac, hieu cua, hieu va
dan va » doan va, dan ca, ban va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((hieu ca) OR (chieu sach)) - hanh dan va nhung cong tan thanh cha~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((hieu ca) OR (chieu sach)) - hanh dan va nhung cong tan thanh cha*".