Perhaps you should try some spelling variations:
tham luoc » tham nuoc, tom luoc, khai luoc
can hanh » ban hanh, van hanh, dan hanh
luoc can » luc canh, hoc can, luoc dai
vu sach » vu bach, su sach, vu khach
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
va tham » van tham, va cham, va thanh
vi cau » ve cau, di cau, viet cau
va cau » van cau, va cac, va dau

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 y ((nang xa) OR (nang ma)) hoi. lieu va tham luoc can hanh ((vi cau) OR (va cau)) treo~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y ((nang xa) or (nang ma)) hoi. lieu va tham luoc can hanh ((vi cau) OR (va cau)) treo~".
• Adding a wildcard symbol may retrieve word variants: vu sach y ((nang xa) or (nang ma)) hoi. lieu va tham luoc can hanh ((vi cau) OR (va cau)) treo*.