Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc cho cu snippets" » "duoc co cu snippets", "nuoc cho cu snippets", "quoc cho cu snippets", "duoc cho chu snippets", "duoc cho ca snippets", "duoc cho tu 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: (((("duoc cho cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duoc cho cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc cho cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc cho cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.