Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
hanh vai » hanh vi, hanh va, hanh van
hieu van » hieu va, thien van, lieu va
duc van » duc va, duc tan, duc manh
cam duc » cam xuc, cao duc, pham duc
van cam » van nam, van lam, van cau
nang xa » nang x, lang xa, nang ma
sai ky » sac ky
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 ((sai ky) or (cac ky)) nang xa hoi. hieu van cam duc van ((hanh vai) OR (hanh tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sai ky) OR (cac ky)) nang xa hoi. hieu van cam duc van ((hanh vai) OR (hanh tai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sai ky) or (cac ky)) nang xa hoi. hieu van cam duc van ((hanh vai) OR (hanh tai)) cua te".
• Adding a wildcard symbol may retrieve word variants: thu ((sai ky) or (cac ky)) nang xa hoi. hieu van cam duc van ((hanh vai) OR (hanh tai)) cua te*.