Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac chu cua snippets" » "cac thu cua snippets", "cac che cua snippets", "cac khu cua snippets", "cac chuc cua snippets", "cac hu cua snippets", "cac chi 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: (((("cac chu 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: (((("cac chu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac chu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac chu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.