Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
nhung cong » dung cong, thong cong, nhung don
hanh tinh » hanh trinh, thanh tinh, canh tinh
hang cong » dang cong, hang nong, bang cong
khi xanh » khia canh, thi hanh, thi anh
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi xanh - ((hanh tinh) or (nhanh tinh)) thua ((nhung cong) OR (hang cong)) dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi xanh - ((hanh tinh) OR (nhanh tinh)) thua ((nhung cong) OR (hang cong)) dan toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi khi xanh - ((hanh tinh) or (nhanh tinh)) thua ((nhung cong) OR (hang cong)) dan toan tap*".