Perhaps you should try some spelling variations:
sach tuc » sach truc, sach tu, cach thuc
tuc tang » thuc trang, duc thang, duc tan
cham xuc » chat xuc, cham soc, pham duc
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
tang ma » mang may, tang van
hieu ve » hieu va, hieu van
va han » va phan, van han, va hanh
tai va » thai va, mai va, tri va
thiet* » thieu*

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 tuc tang ma hoa. hieu ve ((cham xuc) OR (cam xuc)) ((va han) or (van hanh)) tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tuc tang ma hoa. hieu ve ((cham xuc) OR (cam xuc)) ((va han) OR (van hanh)) tai va thiet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tuc tang ma hoa. hieu ve ((cham xuc) OR (cam xuc)) ((va han) or (van hanh)) tai va thiet*".