Perhaps you should try some spelling variations:
thien van » thi van
thu thuat » phau thuat, thu hut
thuat anh » thuat lanh, thuat canh, thuat nganh
hieu van » hieu va, lieu va, hieu ve
tu cach » tu cac
vu sach » vu bach, su sach, vu khach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
anh va » hanh va
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (vu sach)) ky lang xa hoi. ((hieu van) or (thien van)) nam thu thuat anh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (vu sach)) ky lang xa hoi. ((hieu van) OR (thien van)) nam thu thuat anh va cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (vu sach)) ky lang xa hoi. ((hieu van) or (thien van)) nam thu thuat anh va cua tre*.