Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"banh kem hoi snippets" » "hanh kem hoi snippets", "banh keo hoi snippets", "ban kem hoi snippets", "banh dem hoi 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: (((("banh kem hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("banh kem hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( banh kem hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("banh kem hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.