Perhaps you should try some spelling variations:
phan hien » phat hien, phan kien, phan bien
thanh ly » thanh lay, thanh ky, thanh le
va thanh » gia thanh, ban thanh, va tinh
sach ty » sach y, sach tu, sach thu
ly phan » ly nhan, duy phan
vu sach » vu bach, su sach, vu khach
nang ro » nang co, nang ho, nang ra
ty nang » ky nang, ty xang, ty hang
ve cham » va cham, ve chat, vu cham
ve cam » ve cac, ve cai, ve cau
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
ro hoi » co hoi, o hoi, mo hoi

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: vu sach ty nang ro hoi. hieu ((((ve cam) OR (ve cham))) OR (va cam)) luc va thanh ly phan hien~.
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang ro hoi. hieu ((((ve cam) or (ve cham))) or (va cam)) luc va thanh ly phan hien*.