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