Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc vung doc snippets" » "hoc vung code snippets", "choc vung doc snippets", "hoc ung doc snippets", "hoc dung doc snippets", "hoc vung moc snippets", "hoc vung doi snippets", "hoc vung hoc 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 vung 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: (((("hoc vung doc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoc vung doc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc vung doc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.