Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
tang tai » hang tai, dung tai, sang tao
van hanh » van thanh, ban hanh, van ban
su sach » so sach, vu sach
cua tuc » cua tu, cua thuoc, luat tuc
van anh » van thanh, tuan anh, van minh
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
tai hoc » thai hoc, dai hoc, bai hoc
cua duc » cua nuoc, cua quoc
y tang » ky tang, 6 tang, 7 tang

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