Perhaps you should try some spelling variations:
tang tai » dung tai, sang tao, dong tai
van hanh » van thanh, ban hanh, van ban
hang tai » hang va, dung tai
cham xuc » cam xuc, chat xuc, cham soc
tu sach » thu sach, su sach, te sach
ve cham » va cham, ve chat, vu cham
van anh » van thanh, tuan anh, van minh
hieu ve » hieu va, hieu van
cua tuc » cua duc, cua tu, cua thuoc
sach 7 » sach y, sach 2
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) OR (hang tai)) hoi. hieu ve 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) OR (hang tai)) hoi. hieu ve 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) OR (hang tai)) hoi. hieu ve cham xuc ((van hanh) or (van anh)) vi cua tuc".
• Adding a wildcard symbol may retrieve word variants: tu sach 7 ((tang tai) OR (hang tai)) hoi. hieu ve cham xuc ((van hanh) or (van anh)) vi cua tuc*.