Perhaps you should try some spelling variations:
thanh tung » thanh cong
nang cong » nang song, dang cong, bang cong
chu sang » thu sang, chieu sang, chuc nang
chu bang » thu bang, chuc nang, chu quang
tung cam » dung cam, trung cap, tung pham
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu sang) OR (chu bang)) - thanh tung cam nang cong dan than tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu sang) OR (chu bang)) - thanh tung cam nang cong dan than tap*".