Perhaps you should try some spelling variations:
quyen tai » xuyen tai, nguyen tai, truyen tai
tac kiem » tac ke, va kiem, van kiem
thi kiem » thi kim, thi lien, thi hien
te trong » ke trong, te thuong, ben trong
le trong » le trung, ly trong, le tang
ban le » ban ve
le ky » ke ky, ve ky, ly ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: quyen tai ((tac kiem) OR (thi kiem)) đe co ban le ky ((te trong) or (le trong)) cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: quyen tai ((tac kiem) OR (thi kiem)) đe co ban le ky ((te trong) OR (le trong)) cong.
• The words AND, OR and NOT may confuse the search; try adding quotes: "quyen tai ((tac kiem) OR (thi kiem)) đe co ban le ky ((te trong) or (le trong)) cong".
• Adding a wildcard symbol may retrieve word variants: quyen tai ((tac kiem) OR (thi kiem)) đe co ban le ky ((te trong) or (le trong)) cong*.