Perhaps you should try some spelling variations:
quyen tap » tuyen tap, quyen cap, huyen tam
luyen tap » tuyen tap, luyen thi
cong cong » cong dong, trong cong, dung cong
van thuc » va thuc, dan thuc, van thu
bang vat » bang va, dang vat, cang vat
co bang » cao bang, con bang, co ban
te cong » tai cong, thi cong, thu cong
vat y » vat ly, vat _

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((quyen tap) OR (luyen tap)) van thuc đe co bang vat y te cong cong~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((quyen tap) OR (luyen tap)) van thuc đe co bang vat y te cong cong".
• Adding a wildcard symbol may retrieve word variants: ((quyen tap) OR (luyen tap)) van thuc đe co bang vat y te cong cong*.