Perhaps you should try some spelling variations:
sach thuc » cach thuc, sach thu, sach thue
danh vai » danh sai, danh va, doanh van
te sach » toc sach
hanh xa » hanh va, hanh ma, hanh xu
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
va cam » va cham, va cac, va cao
ve tai » te tai, de tai, le tai
ve cai » va cai, ve cac, ve cau
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: te sach thuc hanh xa hoi. hieu ((((ve cai) OR (ve tai))) or (va cam)) duc va danh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thuc hanh xa hoi. hieu ((((ve cai) OR (ve tai))) OR (va cam)) duc va danh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thuc hanh xa hoi. hieu ((((ve cai) OR (ve tai))) or (va cam)) duc va danh vai cua te".
• Adding a wildcard symbol may retrieve word variants: te sach thuc hanh xa hoi. hieu ((((ve cai) OR (ve tai))) or (va cam)) duc va danh vai cua te*.