Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using low snippets" » "python using code snippets"
"doi than phan snippets" » "doi thanh phan snippets", "doi toan phan snippets", "doi thanh pham snippets", "doi nhan phan snippets", "doc than phan snippets", "doi tan phan snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using low snippets") or ("doi than phan snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using low snippets") OR ("doi than phan snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using low snippets ) or ( doi than phan snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using low snippets") or ("doi than phan snippets"))) or ("locating bug core snippets"))*.