Perhaps you should try some spelling variations:
hanh thang » nhanh thang, thanh thang, hanh trang
chieu sach » chinh sach, chiet tach, chieu sang
thanh phan » thanh pho, thanh san, thanh toan
hang cong » dang cong, hang nong, bang cong
tan thanh » tran thanh, tang thanh, toan thanh
thang va » hang va, trang va, thong va
cong tan » cong tac, cong san, cong thanh
hieu va » lieu va, hieu qua
va hang » van hang, va nang, va lang

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 va) OR (chieu sach)) - hanh thang va hang cong tan thanh phan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((hieu va) OR (chieu sach)) - hanh thang va hang cong tan thanh phan*".