Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vinh phan do snippets" » "dinh phan do snippets", "trinh phan do snippets", "vinh thang do snippets", "vinh phan bo snippets", "vinh phan co snippets", "vinh phan mo 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 phan do 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 phan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vinh phan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vinh phan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.