Perhaps you should try some spelling variations:
hanh doi » thanh doi, hanh noi, hang doi
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
duc van » duc va, duc manh, duc phan
doi cua » dai cua, hoi cua, dong cua
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 ((duc van) or (duc tan)) hanh doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ve cam ((duc van) OR (duc tan)) hanh doi cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ve cam ((duc van) or (duc tan)) hanh doi cua te*.