Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu quoc bo snippets" » "phu quoc bo snippets", "tru quoc bo snippets", "thuat quoc bo snippets", "thu quoc bao snippets", "thu nuoc bo snippets", "thu quoc co 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 bo 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 bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu quoc bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu quoc bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.