Perhaps you should try some spelling variations:
thuoc sai » thuoc tai, thuoc san, thuoc sach
thanh lai » thanh hai, thanh lap, thanh loi
sang tao » hang tai
tao khoi » tao hoi, thao khoa, lao khoa
hieu van » thien van, lieu va, hieu ve
va thanh » gia thanh, ban thanh, va tinh
ky sang » ky nang, ky dang, ky tang
hieu va » lieu va, hieu qua
lai cua » dai cua, hai cua, lai chau
sai ky » sac ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sai ky sang tao khoi. ((hieu van) OR (hieu va)) pham duc va thanh lai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sai ky sang tao khoi. ((hieu van) OR (hieu va)) pham duc va thanh lai cua te".
• Adding a wildcard symbol may retrieve word variants: thuoc sai ky sang tao khoi. ((hieu van) OR (hieu va)) pham duc va thanh lai cua te*.