Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu lam dong snippets" » "thu lao dong snippets", "thu lam sang snippets", "thu ha dong snippets", "thu nam dong snippets", "tu lam dong 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 lam dong 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 lam dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu lam dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu lam dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.