Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tue han cho snippets" » "tue nhan cho snippets", "te han cho snippets", "tu han cho snippets", "tue hang cho snippets", "tue han che snippets", "tue san cho 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: (((("tue han cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tue han cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tue han cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tue han cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.