Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao lanh voi snippets" » "cao lan voi snippets", "cao anh voi snippets", "cao danh voi snippets", "cao hanh voi snippets", "cao hanh vi snippets", "cao lanh hai 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: (((("cao lanh voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao lanh voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao lanh voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao lanh voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.