Perhaps you should try some spelling variations:
trang xa » trang va, trang ha, trong xa
ke trang » ke toan
van hanh » van thanh, ban hanh, van anh
dau tren » dau tien, dat tren, dau tieng
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet

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)) ke trang xa hoi. lieu va cac xuc van hanh vi ((dau tren) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ke trang xa hoi. lieu va cac xuc van hanh vi ((dau tren) OR (cua tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ke trang xa hoi. lieu va cac xuc van hanh vi ((dau tren) or (cua tre))*".