Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban can coi snippets" » "ban dan coi snippets", "ban hang coi snippets", "ban hanh coi snippets", "ban can chi snippets", "ban can moi snippets", "ban con coi 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: (((("ban can coi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban can coi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban can coi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban can coi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.