Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bach xuan do snippets" » "anh xuan do snippets", "bach qua do snippets", "sach luan do snippets", "bach xuan dao snippets", "bach xuan du snippets", "bach xuan ho 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 xuan do 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 xuan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bach xuan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bach xuan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.