Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu sang » chieu sach, chieu xanh, nhieu tang
trinh quan » tinh quang, trinh luat, trinh han
hieu lang » hieu quang, nhieu tang, hieu van
quan bang » quan lang, tuan bang, quan hoang
bang cong » dang cong, bang song, hang cong
trien cay » trien cac, trien cam, trien xay
cong tac » cong ty
tren cay » tren may, ten cay, tren ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (chieu sang)) - hanh trinh quan bang cong tac ((trien cay) OR (tren cay))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sang)) - hanh trinh quan bang cong tac ((trien cay) OR (tren cay)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (chieu sang)) - hanh trinh quan bang cong tac ((trien cay) OR (tren cay))".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sang)) - hanh trinh quan bang cong tac ((trien cay) OR (tren cay))*.