Perhaps you should try some spelling variations:
dan hanh » dang hanh, dan khanh, dan thanh
thuc dan » thuc hanh, hoc dan, thuc vat
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hanh di » hanh vi, hanh de, hang di
di cua » dai cua, doi cua, de cua
ve cai » va cai, ve cac, ve tai
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam
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 sach y nang xa hoi. hieu ((((ve cam) or (ve cai))) or (va cac)) thuc dan hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ((((ve cam) OR (ve cai))) OR (va cac)) thuc dan hanh di cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ((((ve cam) or (ve cai))) or (va cac)) thuc dan hanh di cua te*.