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