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