Perhaps you should try some spelling variations:
quyen tap » tuyen tap, luyen tap, quyen cap
tien hung » tien dung, bien chung, viet hung
van thuc » va thuc, dan thuc, van thu
bang vat » bang va, dang vat, cang vat
tap van » tap va, tap vat, tap quan
co bang » cao bang, con bang, co ban
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 van thuc đe co bang vat y ((tien hung) OR (tien luong)) cong~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "quyen tap van thuc đe co bang vat y ((tien hung) OR (tien luong)) cong".
• Adding a wildcard symbol may retrieve word variants: quyen tap van thuc đe co bang vat y ((tien hung) OR (tien luong)) cong*.