Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc vien chi snippets" » "hoc hien chi snippets", "hoc viet chi snippets", "hoc tieng chi snippets", "hoc vien nhi snippets", "hoc kien chi snippets", "hoc viec chi 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: (((("hoc vien chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc vien chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc vien chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc vien chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.