Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khai sat cho snippets" » "khao sat cho snippets", "khai quat cho snippets", "khai sang cho snippets", "khai san cho snippets", "khai dat cho snippets", "khai sat che 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: (((("khai sat 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: (((("khai sat cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khai sat cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khai sat cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.