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