Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan cach mon snippets" » "dan cac mon snippets", "dan canh mon snippets", "nhan cach mon snippets", "dan cach con snippets", "dan cach mang 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: (((("dan cach mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan cach mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan cach mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan cach mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.