Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chao thu hoi snippets" » "chao chu hoi snippets", "cao thu hoi snippets", "cao thi hoi snippets", "chao thu hoai snippets", "chao thu phoi snippets", "chao thu hai 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: (((("chao thu 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: (((("chao thu hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chao thu hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chao thu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.