Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hien nhanh » hien hanh, tien thanh, dien thanh
tuong cua » truong cua, huong cua, luong cua
thong cua » thong quan, thong tu, huong cua
dung song » dung cong, dung dong, vung song
song van » hoang van, trong van, duong van
van than » van thanh, van thang, van tuan
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien nhanh) or (thien thanh)) - thanh ((tuong cua) OR (thong cua)) dung song van than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien nhanh) OR (thien thanh)) - thanh ((tuong cua) OR (thong cua)) dung song van than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien nhanh) or (thien thanh)) - thanh ((tuong cua) OR (thong cua)) dung song van than cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien nhanh) or (thien thanh)) - thanh ((tuong cua) OR (thong cua)) dung song van than cao*.