Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thong cong » trong cong, tong cong, thong thong
toan thanh » tran thanh, hoan thanh, toan thang
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
cua thong » cua thuong, cua khong, cua tong
tan thanh » tran thanh, tang thanh, ban thanh
tinh cua » trinh cua, sinh cua, tinh chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (chieu tinh)) - hanh tinh cua thong cong ((tan thanh) OR (toan thanh)) lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu tinh)) - hanh tinh cua thong cong ((tan thanh) OR (toan thanh)) lap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (chieu tinh)) - hanh tinh cua thong cong ((tan thanh) OR (toan thanh)) lap*".