Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho quen cua snippets" » "cho que cua snippets", "thoi quen cua snippets", "cao quyen cua snippets", "cho quyen cua snippets", "cho quan cua snippets", "cho duyen cua 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: (((("cho quen cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho quen cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho quen cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho quen cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.