Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach ma cua snippets" » "cach ta cua snippets", "cach mang cua snippets", "bach mai cua snippets", "cach ca cua snippets", "cach manh cua 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: (((("cach ma cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach ma cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach ma cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach ma cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.