Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi qua di snippets" » "thi quan di snippets", "thi dua di snippets", "thi cua di snippets", "thi qua da snippets", "thi qua dieu 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 qua di 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 qua di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi qua di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi qua di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.