Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cham mat cua snippets" » "ham mat cua snippets", "nham mat cua snippets", "pham ma cua snippets", "cham ma cua snippets", "cham manh cua snippets", "cham mang 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: (((("cham mat 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: (((("cham mat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham mat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham mat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.