Perhaps you should try some spelling variations:
tieng manh » tieng anh, tieng han, tien anh
dung luong » dung thuong, dung phuong, dung truong
luong quan » thong quan, duong qua
quan nhanh » quan thanh, quan hanh, quang thanh
tien manh » tien anh, tien thanh, tieng anh
trang cua » tranh cua, trung cua, thang cua
nhanh cau » nhanh cay, thanh chau, nhanh ha
tang cua » mang cua, hang cua, tang luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((tieng manh) OR (tien manh)) - hanh ((trang cua) or (tang cua)) dung luong quan nhanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tieng manh) OR (tien manh)) - hanh ((trang cua) OR (tang cua)) dung luong quan nhanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tieng manh) OR (tien manh)) - hanh ((trang cua) or (tang cua)) dung luong quan nhanh cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((tieng manh) OR (tien manh)) - hanh ((trang cua) or (tang cua)) dung luong quan nhanh cau*.