Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac chieu ve snippets" » "cac chien ve snippets", "cao hieu ve snippets", "cac che ve snippets", "cac hieu ve snippets", "cac chieu ke snippets", "cac thieu ve 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: (((("cac chieu ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac chieu ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac chieu ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac chieu ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.