Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc li cho snippets" » "duoc si cho snippets", "duoc ly cho snippets", "duoc lieu cho snippets", "duoc lai cho snippets", "duoc li co 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 li 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: (((("duoc li cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc li cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc li cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.