Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu quoc can snippets" » "phu quoc can snippets", "tru quoc can snippets", "thuat quoc can snippets", "thu quoc chan snippets", "thu luoc can snippets", "thu quoc ban 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: (((("thu quoc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu quoc can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu quoc can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu quoc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.