Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
chua tre » chua tri, cua tre, chua trieu
cham duc » pham duc, cham soc, pham duy
sang tao » hang tai
danh ca » dan ca, doanh cua, danh cho
duc van » duc va, duc tan, duc manh
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
tao hoi » tao khoi, tao boi, tay hoi
ky sang » ky nang, ky dang, ky tang
ve cham » va cham, ve chat, vu cham
anh ca » anh cam, anh cua, sanh ca

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) or (thuat sach)) ky sang tao hoi. hieu ve cham duc van ((anh ca) OR (danh ca)) chua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat sach)) ky sang tao hoi. hieu ve cham duc van ((anh ca) OR (danh ca)) chua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thuat sach)) ky sang tao hoi. hieu ve cham duc van ((anh ca) OR (danh ca)) chua tre*".