Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc can tre snippets" » "hoc can code snippets", "hoc dan tre snippets", "hoc cao tre snippets", "hoc cac tre snippets", "hoc ban tre snippets", "hoc van tren snippets", "hoc dan tren 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: (((("hoc can tre snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc can tre snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoc can tre snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc can tre snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.