Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vinh van cuc snippets" » "dinh van cuc snippets", "trinh van cuc snippets", "sinh vat cuc snippets", "vinh van duc snippets", "vinh van luc snippets", "vinh van cu snippets"
"locating bug code snippets" » "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: (((("vinh van cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vinh van cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vinh van cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vinh van cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.