Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan tiep cua snippets" » "van tiep cua snippets", "luan tieu cua snippets", "gian tiep cua snippets", "lan tiep can snippets", "lan dieu cua snippets", "lan tap cua 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: (((("lan tiep cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lan tiep cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan tiep cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan tiep cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.