Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan luat so snippets" » "dan luat so snippets", "lan xuat so snippets", "hanh luat so snippets", "lan thuat so snippets", "lan luat bao 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 luat so 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 luat so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan luat so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan luat so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.