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