Perhaps you should try some spelling variations:
thanh dam » thanh dat, thanh nam, thanh tam
nang tai » hang tai, tang tai, sang tai
hanh dao » lanh dao, thanh dat, doanh dao
su sach » so sach, vu sach
thuc va » thuc vat, thuc dan, thuc day
vi than » vi thanh, vi phan, va than
sach ky » sac ky, sach y, sach ty
vi tham » vi pham, va tham, vi thay
tai hoi » tai khoi, dai hoi, tai hai
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: su sach ky nang tai hoi. hieu ((vi tham) or (vi than)) thuc va ((hanh dao) OR (thanh dam)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang tai hoi. hieu ((vi tham) OR (vi than)) thuc va ((hanh dao) OR (thanh dam)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang tai hoi. hieu ((vi tham) or (vi than)) thuc va ((hanh dao) OR (thanh dam)) cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang tai hoi. hieu ((vi tham) or (vi than)) thuc va ((hanh dao) OR (thanh dam)) cua te*.