Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tin dung cot snippets" » "tin dung co snippets", "tin dung mot snippets", "tin dung con snippets", "tinh dung cot snippets"
"locating bug code snippets" » "locatinhg 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: (((("tin dung cot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tin dung cot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tin dung cot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tin dung cot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.