Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
tru nang » tra nang, tri nang, truc nano
hieu van » hieu va, thien van, lieu va
hanh lam » thanh lap, hanh kem, hanh va
sach tru » sach truc, sach thu, sach tu
vu sach » vu bach, su sach, vu khach
cua tre » cuu tre, cua triet, dua tren
cam duc » cam xuc, cao duc, pham duc
van cam » van nam, van lam, van cau
nang xa » nang x, lang xa, nang ma
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: vu sach tru nang xa hoi. hieu van cam duc va ((hanh tai) or (hanh lam)) ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach tru nang xa hoi. hieu van cam duc va ((hanh tai) OR (hanh lam)) ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: vu sach tru nang xa hoi. hieu van cam duc va ((hanh tai) or (hanh lam)) ((cua tre) or (cua te))*.