Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
nang ma » tang ma, sang ma, nang cao
va cham » va chat, va tham
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
ve tai » te tai, de tai, le tai
vi cua » vai cua, di 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: thu sach y nang ma hoi. hieu ((ve tai) or (va cham)) thuc van hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang ma hoi. hieu ((ve tai) OR (va cham)) thuc van hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang ma hoi. hieu ((ve tai) or (va cham)) thuc van hanh vi cua te*.