Perhaps you should try some spelling variations:
thien van » thi van
lam trang » lam trong, lam trung, lam truong
trang may » trang mat, trang mau, trang va
hieu van » hieu va, lieu va, hieu ve
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
tinh vi » trinh vi, tinh voi, tinh va
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di 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 sach) OR (su sach)) ky nang xa hoi. ((hieu van) or (thien van)) lam trang may tinh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang xa hoi. ((hieu van) OR (thien van)) lam trang may tinh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ky nang xa hoi. ((hieu van) or (thien van)) lam trang may tinh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ky nang xa hoi. ((hieu van) or (thien van)) lam trang may tinh vi cua tre*.