Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu va toi snippets" » "lieu van toi snippets", "lieu va tai snippets", "lieu va thi snippets", "hieu va toi snippets", "dieu va toi 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 va toi 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 va toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu va toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu va toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.