Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
cham xuc » chat xuc, cham soc, pham duc
van hanh » van thanh, ban hanh, van anh
cuu tre » cua tre, cau treo
hanh di » hanh vi, hanh de, hang di
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
sach o » sach lo, sac o, sach y
o lang » hoa lang, hoi lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach o lang xa hoi. hieu ve ((cham xuc) or (cam xuc)) van hanh di ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach o lang xa hoi. hieu ve ((cham xuc) OR (cam xuc)) van hanh di ((cuu tre) OR (cau tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach o lang xa hoi. hieu ve ((cham xuc) or (cam xuc)) van hanh di ((cuu tre) OR (cau tren))*".