Perhaps you should try some spelling variations:
tu cach » tu cac
danh va » doanh va, hanh va, anh va
va danh » va dinh, va dan, va hanh
ve cham » va cham, ve chat, vu cham
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
su sach » so sach, vu sach
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cac, va cam, ve cai
va cua » va chua, via cua, ca cua
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 (su sach)) ty nang ma hoi. hieu ((ve cam) OR (ve cham)) duc va danh va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) ty nang ma hoi. hieu ((ve cam) OR (ve cham)) duc va danh va cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (su sach)) ty nang ma hoi. hieu ((ve cam) OR (ve cham)) duc va danh va cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su sach)) ty nang ma hoi. hieu ((ve cam) OR (ve cham)) duc va danh va cua te*.