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