Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi hoc mon snippets" » "thai hoc mon snippets", "tri hoc mon snippets", "thi hoa mon snippets", "thi hoc moi snippets", "thi hoc mot snippets", "thi hoc cong 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: (((("thi hoc mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi hoc mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi hoc mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hoc mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.