Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
duy nang » dun nang, duy nong, duy sang
cham luc » cham soc, nhan luc, cham cuu
nang ma » tang ma, sang ma, nang cao
va cham » va chat, va tham
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
luc va » duc va, tuc va, loc va
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuat sach) or (thu hoach)) duy nang ma hoi. lieu va cham luc va danh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat sach) OR (thu hoach)) duy nang ma hoi. lieu va cham luc va danh va cua tre.
• Adding a wildcard symbol may retrieve word variants: ((thuat sach) or (thu hoach)) duy nang ma hoi. lieu va cham luc va danh va cua tre*.