Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tham do so snippets" » "thai do so snippets", "pham do so snippets", "tham du so snippets", "tham do son snippets", "tham co so snippets", "tham do bo 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: (((("tham do 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: (((("tham do so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tham do so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tham do so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.