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