Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi hau doc snippets" » "thi hai doc snippets", "thi ha doc snippets", "khi hau doc snippets", "thi chau doc snippets", "thi hau loc snippets", "thi phau hoc 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: (((("thi hau doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi hau doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi hau doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hau doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.