Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dinh cho hoc snippets" » "dinh chon hoc snippets", "danh cho hoc snippets", "dinh chi hoc snippets", "dinh co hoc snippets", "dinh khoa 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: (((("dinh cho 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: (((("dinh cho hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dinh cho hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh cho hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.