Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu duc so snippets" » "thu tuc so snippets", "tho duc so snippets", "thu muc so snippets", "thu duc mo snippets", "thu duc sy 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: (((("thu duc 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: (((("thu duc so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu duc so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu duc so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.