Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi khoa cap snippets" » "thai khoa cap snippets", "thit khoa cap snippets", "tai khoa cap snippets", "thi khoa cam snippets", "thi khoa tap snippets", "thi khoa can 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: (((("thi khoa cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi khoa cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi khoa cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi khoa cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.