Perhaps you should try some spelling variations:
thieu nganh » hieu nganh, trien nganh, nghiep nganh
thanh trung » thanh tung
trung thuan » trung tuan, trong thuan, trung thanh
thuan trong » thuat trong, nhuan trong, than trong
hoc thieu » toc thieu, hoc hien
dang hanh » dang thanh, ban hanh, dang van
tan hanh » tan thanh, tang hanh, toan hanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu nganh - thanh trung thuan trong cong ((tan hanh) or (dang hanh)) ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu nganh - thanh trung thuan trong cong ((tan hanh) OR (dang hanh)) ca*.