Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho cong xon snippets" » "cao cong xon snippets", "cua cong xon snippets", "cac cong xon snippets", "cho cong lon snippets", "cho cong hon snippets", "cho cong dong 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 cong xon 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 cong xon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho cong xon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho cong xon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.