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