Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tot dan cach snippets" » "tot dan cac snippets", "tot dan canh snippets", "tot nhan cach snippets", "tot san cach snippets", "tot den cach snippets", "thpt dan cach 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: (((("tot dan cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tot dan cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tot dan cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tot dan cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.