Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua duc chi snippets" » "cua tuc chi snippets", "cua nuoc chi snippets", "cua quoc chi snippets", "cua du chi snippets", "cua duc thi snippets", "cua duc chien 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: (((("cua duc chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua duc chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua duc chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua duc chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.