Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tim hanh o2 snippets" » "tim hanh code snippets", "tiem hanh o2 snippets", "kim thanh o2 snippets", "tien hanh o2 snippets", "tim hang o2 snippets", "tim hanh noi snippets", "tim hanh hoa snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tim hanh o2 snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"tim hanh o2 snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( tim hanh o2 snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tim hanh o2 snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.