Perhaps you should try some spelling variations:
trinh hant » trinh hanh, trinh thanh, trinh van
hien xanh » hien hanh, hien nhanh, chieu xanh
trinh han » trinh quan
hang cong » dang cong, hang nong, bang cong
trinh ve » trinh he, trinh va, trinh vi
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - canh ((trinh ve) or (((trinh han) or (trinh hant)))) hang cong tac phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - canh ((trinh ve) OR (((trinh han) OR (trinh hant)))) hang cong tac phan tu.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh ((trinh ve) or (((trinh han) or (trinh hant)))) hang cong tac phan tu*.