Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bach huy can snippets" » "bach hue can snippets", "bach ha can snippets", "bach nhu can snippets", "bach duy can snippets", "bach thuy canh snippets", "bach huy tran 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: (((("bach huy 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: (((("bach huy can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bach huy can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bach huy can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.