Perhaps you should try some spelling variations:
tieu trinh » tien trinh, tien thinh, trieu tinh
phuong dan » phuong danh, phuong doan, huong dan
tieu tinh » trieu tinh, lieu tinh, kieu tinh
nhan dang » nhan dan, phan dang, tran dang
vap nhung » va nhung, voi nhung, cam nhung
ve nhung » va nhung, tu nhung
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, 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: theo ((tieu tinh) or (tieu trinh)) - nhan dang ((vap nhung) OR (ve nhung)) phuong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu tinh) OR (tieu trinh)) - nhan dang ((vap nhung) OR (ve nhung)) phuong dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu tinh) or (tieu trinh)) - nhan dang ((vap nhung) OR (ve nhung)) phuong dan than cau".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu tinh) or (tieu trinh)) - nhan dang ((vap nhung) OR (ve nhung)) phuong dan than cau*.