Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi vong doi snippets" » "doi vong code snippets", "doi song doi snippets", "di vong doi snippets", "doi cong doi snippets", "doi trong doi snippets", "doi huong doi snippets", "doi dung doi 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: (((("python using java snippets") or ("doi vong doi snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("doi vong doi snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( doi vong doi snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("doi vong doi snippets"))) or ("locating bug core snippets"))*.