Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam chat voi snippets" » "lam chat voi snippets", "cao chat voi snippets", "van chat voi snippets", "dam cham voi snippets", "dam chat moi snippets", "dam chat vo 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: (((("dam chat voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dam chat voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam chat voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam chat voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.