Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nong dan doc snippets" » "nong dan code snippets", "cong dan doc snippets", "nong san doc snippets", "nguong dan doc snippets", "nong dan toc snippets", "nong dan hoc snippets", "nong dan soc 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: (((("nong dan doc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nong dan doc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nong dan doc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nong dan doc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.