Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tham dat doc snippets" » "pham dat doc snippets", "tham dam doc snippets", "thanh dat doc snippets", "tham dat duoc snippets", "tham day doc snippets", "tham dat nuoc 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 dat doc 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 dat doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tham dat doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tham dat doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.