Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hong hanh do snippets" » "dong thanh do snippets", "cong thanh do snippets", "hong ha do snippets", "hong thanh do snippets", "hong hanh dao snippets", "hong hanh de 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: (((("hong hanh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hong hanh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hong hanh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hong hanh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.