Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu phap chu snippets" » "thuy phap chu snippets", "thu nhap chu snippets", "thi phap chu snippets", "thu phap chua snippets", "thu phap chuc snippets", "thu phap che 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: (((("thu phap chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu phap chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu phap chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu phap chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.