Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tinh da hoc snippets" » "tinh va hoc snippets", "tinh gia hoc snippets", "tinh lao hoc snippets", "tinh dai hoc snippets", "tinh dan hoc snippets", "tinh day hoc 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 da hoc 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 da hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tinh da hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tinh da hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.