Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"man minh chi snippets" » "van minh chi snippets", "man tinh chi snippets", "mai minh chi snippets", "man dinh chi snippets", "man linh chi snippets", "man minh chau 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: (((("python using java snippets") or ("man minh chi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("man minh chi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( man minh chi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("man minh chi snippets"))) or ("locating bug code snippets"))*.