Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho chat cua snippets" » "cao chat cua snippets", "cho phat cua snippets", "chao chao cua snippets", "cho nhat cua snippets", "cho chat va snippets", "cho chat huu 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 chat 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 chat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho chat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho chat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.