Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
va trien » va truyen, va thiet, va tuyen
thanh va » hanh va, thanh ha, thanh ve
tu cach » tu cac
hieu ve » hieu va, hieu van
tu tong » tu tuong, tu trong, tu dong
cam luc » cam xuc, cau luc
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc va
tong x » tong xi, thong xu, trong xu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su co)) tu tong x ho. hieu ve cam luc va ((thanh va) OR (thanh van)) va trien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (su co)) tu tong x ho. hieu ve cam luc va ((thanh va) OR (thanh van)) va trien~".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su co)) tu tong x ho. hieu ve cam luc va ((thanh va) OR (thanh van)) va trien*.