Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoan tao cac snippets" » "hoan tao code snippets", "hoan hao cac snippets", "hoang thao cac snippets", "hoang bao cac snippets", "hoan tao bac snippets", "hoan tao cao snippets", "hoan tai cac snippets"
"python using java snippets" » "python using data 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: (((("hoan tao cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoan tao cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoan tao cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoan tao cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.