Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hau luoc can snippets" » "hau loc can snippets", "khai luoc can snippets", "muu luoc can snippets", "hau luc canh snippets", "hau hoc can snippets", "hau luoc dai 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: (((("hau luoc 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: (((("hau luoc can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hau luoc can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hau luoc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.