Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"long va sach snippets" » "luong va sach snippets", "long van sach snippets", "blong va sach snippets", "long va cach snippets", "long a sach snippets", "long va sach slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("long va sach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("long va sach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( long va sach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long va sach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.