Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mat hinh hoc snippets" » "mat chinh hoc snippets", "bat hinh hoc snippets", "mau hinh hoc snippets", "mat sinh hoc snippets", "mat tin hoc snippets", "mat benh 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: (((("mat hinh 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: (((("mat hinh hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mat hinh hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat hinh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.