Perhaps you should try some spelling variations:
tran thanh » ban thanh, van thanh
quan thanh » ban thanh, van thanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
tran tuan » tran xuan, tran quang, tranh luan
dung cong » dung trong
hoc hieu » hoc thieu, hoc hien, doc hieu
tren cau » tren ca, tren cay, tren tau
cong te » cong ty, cong ti, cong tu
te tren » tu tren, te trong, thi tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - thanh ((((tran tuan) or (tran thanh))) or (quan thanh)) dung cong te tren cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - thanh ((((tran tuan) OR (tran thanh))) OR (quan thanh)) dung cong te tren cau.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - thanh ((((tran tuan) or (tran thanh))) or (quan thanh)) dung cong te tren cau*.