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