Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chua voi can snippets" » "chua noi can snippets", "cua vi can snippets", "chua o can snippets", "chua voi cac snippets", "chua voi cong snippets", "chua 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: (((("chua 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: (((("chua voi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chua voi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chua voi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.