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