Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tran » trung tuan, trung thanh, trung tam
tran dang » tran quang, tran hoang, tranh hang
dang cong » dung cong
chi xanh » chi anh, chi danh, chi hanh
cong tac » cong ty
tren cay » trien cay, tren may, tren ca
doi chi » doi khi
ten cay » trien cay, benh cay
gen cay » benh cay

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - thanh trung tran dang cong tac ((tren cay) or (((ten cay) OR (gen cay))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - thanh trung tran dang cong tac ((tren cay) OR (((ten cay) OR (gen cay)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - thanh trung tran dang cong tac ((tren cay) or (((ten cay) OR (gen cay))))".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - thanh trung tran dang cong tac ((tren cay) or (((ten cay) OR (gen cay))))*.