Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tro cuu da snippets" » "tro cua da snippets", "tra cuu da snippets", "troi cua da snippets", "tro cuu dac snippets", "tro cuu dao snippets", "tro cuu va 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: (((("tro cuu da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tro cuu da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tro cuu da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tro cuu da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.