Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tinh cao can snippets" » "tinh lao can snippets", "tinh chat can snippets", "tinh cach can snippets", "tinh cao cap snippets", "tinh cao van snippets", "tinh cao lan 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: (((("tinh cao can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tinh cao can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tinh cao can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tinh cao can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.