Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc hai so snippets" » "thuc thai so snippets", "tuc hai so snippets", "thu hai so snippets", "thuc dai so snippets", "thuc tai so snippets", "thuc thai son 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: (((("thuc hai so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuc hai so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc hai so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc hai so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.