Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan que cua snippets" » "lang que cua snippets", "van que cua snippets", "lang quen cua snippets", "lan quen cua snippets", "lan tue 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: (((("lan que 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: (((("lan que cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan que cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan que cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.