Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri tinh cho snippets" » "tri kinh cho snippets", "trieu tinh cho snippets", "thai tinh cho snippets", "tri trinh cho snippets", "tri tinh cao snippets", "tri 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: (((("tri 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: (((("tri tinh cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri tinh cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri tinh cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.