Perhaps you should try some spelling variations:
trang tuan » trung tuan, trong tuan, tran xuan
tien manh » tien anh, tien thanh, tieng anh
tran tuan » tran xuan, tran quang, tran thanh
dung cong » dung trong
van thanh » ban thanh
hoc tien » hoc tieng, hoc hien, hoc vien
van tuan » van quan, van ban, anh tuan

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

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