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