Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
danh vai » danh sai, danh va, doanh van
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
cam loc » cam lo
tu cach » tu cac
ky dang » ky nang, ky danh
ky lang » ky nang, ky tang, tay lang
ve cam » ve cham, ve cac, va cam
loc va » hoc va, luc va
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: ((tu cach) or (thu sach)) ((ky lang) or (ky dang)) xa hoi. hieu ve cam loc va danh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thu sach)) ((ky lang) OR (ky dang)) xa hoi. hieu ve cam loc va danh vai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thu sach)) ((ky lang) or (ky dang)) xa hoi. hieu ve cam loc va danh vai cua te*.