Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu so mon snippets" » "hieu so mon snippets", "thieu so mon snippets", "lieu hoc mon snippets", "lieu ho mon snippets", "lieu so con snippets", "lieu so mo 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: (((("lieu so 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: (((("lieu so mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu so mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu so mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.