Perhaps you should try some spelling variations:
thien van » thi van
van tuan » van quan, van ban, anh tuan
sach ky » sach y, sach ty, sach kem
tuan vi » quan vi, luan vi, quans vi
cac toc » cac toi, cac nuoc, cac thoi
cac tac » cac bac, cac dac, cac tai
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
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: te ((sach ky) OR (sac ky)) nang xa hoi. thien van ((cac tac) or (cac toc)) van tuan vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) nang xa hoi. thien van ((cac tac) OR (cac toc)) van tuan vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sac ky)) nang xa hoi. thien van ((cac tac) or (cac toc)) van tuan vi cua te".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sac ky)) nang xa hoi. thien van ((cac tac) or (cac toc)) van tuan vi cua te*.