Perhaps you should try some spelling variations:
cham xuc » chat xuc, cham soc, pham duc
ban hanh » ban hang
van hanh » van thanh, van anh, van ban
su sach » so sach, vu sach
cuu tre » cua tre, cau tren, cau treo
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
di cuu » di cau, di cua, dinh cuu

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) OR (ban hanh)) di cuu tre~.
• 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) OR (ban hanh)) di cuu tre*.
• 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) OR (ban hanh)) di cuu tre*".