Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu vu cho snippets" » "lieu va cho snippets", "lieu tu cho snippets", "dieu vu cho snippets", "lieu vu cao snippets", "lieu cu cho snippets", "lieu uu cho 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 vu cho 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 vu cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu vu cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu vu cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.