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
hieu van » thien van, lieu va, hieu ve
tu sach » thu sach, su sach, te sach
van anh » van thanh, tuan anh, van minh
hieu va » lieu va, hieu qua
tai hoi » tai khoi, dai hoi, tai hai
cua tuc » cua duc, cua tu, cua thuoc
sach 7 » sach y, sach 2
7 tang » 6 tang
vi cua » vai cua, di cua

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 7 tang tai hoi. ((hieu van) OR (hieu va)) cham xuc ((van hanh) or (van anh)) vi cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach 7 tang tai hoi. ((hieu van) OR (hieu va)) cham xuc ((van hanh) OR (van anh)) vi cua tuc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach 7 tang tai hoi. ((hieu van) OR (hieu va)) cham xuc ((van hanh) or (van anh)) vi cua tuc".
• Adding a wildcard symbol may retrieve word variants: tu sach 7 tang tai hoi. ((hieu van) OR (hieu va)) cham xuc ((van hanh) or (van anh)) vi cua tuc*.