Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duong xa hoc snippets" » "duong va hoc snippets", "duong ma hoc snippets", "dong xa hoc snippets", "duong xa hoi snippets", "duong xa hoa 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: (((("duong xa 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: (((("duong xa hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong xa hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong xa hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.