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