Perhaps you should try some spelling variations:
trien minh » trien kinh, tien minh, trieu minh
trien dich » mien dich
nhanh mang » nhanh lang, hanh mang, nhanh quang
cong vang » cong lang, cong quang, cong ngang
thanh cau » thanh chau, thanh mau, nhanh cau
mang cua » manh cua, dung cua, ban cua
cong van » cong san, song van, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((trien minh) or (trien dich)) - nhanh mang cua cong ((cong van) OR (cong vang)) thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((trien minh) OR (trien dich)) - nhanh mang cua cong ((cong van) OR (cong vang)) thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((trien minh) or (trien dich)) - nhanh mang cua cong ((cong van) OR (cong vang)) thanh cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((trien minh) or (trien dich)) - nhanh mang cua cong ((cong van) OR (cong vang)) thanh cau*.