Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hong xanh di snippets" » "hoang xanh di snippets", "hong hanh di snippets", "hong anh di snippets", "hong danh di snippets", "hong vanh dai snippets", "hong xanh tai 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 xanh di 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 xanh di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hong xanh di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hong xanh di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.