Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
dang tao » sang tao, nang tao, vang tao
ha dang » hai dang, ha dong, ha tang
thue ha » thue hai, thue nha, thu ha
va cham » va chat, va tham
sang ma » tang ma, sang tao, mang may
nang ma » tang ma, nang cao, mang may
cu te » cua te, tu te, cu de

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y ((nang ma) OR (sang ma)) hoi. hieu ((va cham) or (va cac)) thue ha dang tao cu te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((nang ma) OR (sang ma)) hoi. hieu ((va cham) OR (va cac)) thue ha dang tao cu te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y ((nang ma) OR (sang ma)) hoi. hieu ((va cham) or (va cac)) thue ha dang tao cu te".
• Adding a wildcard symbol may retrieve word variants: thu sach y ((nang ma) OR (sang ma)) hoi. hieu ((va cham) or (va cac)) thue ha dang tao cu te*.