Perhaps you should try some spelling variations:
thuoc sinh » hoc sinh, thu sinh
thuoc sach » hoc sach, nuoc sach, thuat sach
thuat lanh » thuat lap, thuat san
chay tren » thai tren, ca tren, cau tren
hanh lai » hanh lam, hanh tai, thanh lap
lai chay » lai chau, lam chay, lai chang
lanh xa » lang xa, lanh va, canh xa
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, ban hanh
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sinh) or (thuoc sach)) thuat lanh xa hoi. lieu va cam duc va hanh lai chay tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sinh) OR (thuoc sach)) thuat lanh xa hoi. lieu va cam duc va hanh lai chay tren.
• Adding a wildcard symbol may retrieve word variants: ((thuoc sinh) or (thuoc sach)) thuat lanh xa hoi. lieu va cam duc va hanh lai chay tren*.